cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-10 of 14 results. Next

A135107 Integers n such that 10^n+97 is prime.

Original entry on oeis.org

1, 2, 3, 9, 10, 14, 19, 67, 94, 201, 241, 589, 934, 1151, 1179, 4957, 6329, 13621, 26425
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

The next term, if one exists, is >100000. - Robert Price, Apr 25 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10097".

Examples

			n = 3 is a member because 10^3+97 = 1000+97 = 1097, which is prime.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Programs

Extensions

a(14)-a(19) from Robert Price, Nov 06 2010
Edited by Ray Chandler, Dec 23 2010

A135108 Integers n such that 10^n+39 is a prime number.

Original entry on oeis.org

2, 3, 4, 6, 8, 12, 20, 72, 196, 676, 1528, 1923, 5244, 5379, 6308, 21222, 81778
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Examples

			6 is a member: 10^6+39 = 1000000+39 = 1000039, which is a prime number.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Programs

  • Magma
    [n: n in [0..500] |IsPrime(10^n+39)]; // Vincenzo Librandi, Sep 24 2016
  • Mathematica
    Select[Range[2000], PrimeQ[10^# + 39] &] (* G. C. Greubel, Sep 23 2016 *)

Extensions

a(11)-a(12) from Harvey P. Dale, May 25 2008
a(13)-a(16) from Robert Price, Jan 30 2010
Edited by Ray Chandler, Dec 23 2010
a(17) from Robert Price, Mar 03 2011

A135109 Integers n such that 10^n+37 is a prime number.

Original entry on oeis.org

1, 2, 4, 6, 8, 13, 15, 39, 169, 184, 228, 255, 279, 632, 2230, 2238, 2606, 3286, 4604, 4958, 4964, 6016, 8726, 9813, 16201, 16878, 26989, 55372, 72631
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

Verified existing terms. The next term, if one exists, is >39456. - Robert Price, May 24 2010
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10037".

Examples

			6 is a member because 10^6+37 = 1000000+37 = 1000037, which is prime.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Programs

Extensions

Missing initial term 1 added by Vladimir Joseph Stephan Orlovsky, May 06 2008
16201, 16878 added by Robert Price, Mar 22 2010
Additional terms 2230, 2238, 2606, 3286, 4604, 4958, 4964, 6016, 8726, 9813, 26989 from Robert Price, May 24 2010
Edited by Ray Chandler, Dec 23 2010
a(28)=55372 from Robert Price, Jan 09 2011
a(29)=72631 from Robert Price, Jan 29 2011

A135112 Integers n such that 10^n+93 is a prime number.

Original entry on oeis.org

1, 2, 3, 4, 9, 61, 78, 116, 632, 1184, 2034, 3870, 3914, 6456, 12464, 58250
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

The next term, if one exists, is >100000. - Robert Price, Apr 25 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10093".

Examples

			4 is a member: 10^4+93 = 10000+93 = 10093, which is a prime number.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Programs

Extensions

a(1)=1 added by Vladimir Joseph Stephan Orlovsky, May 02 2008
a(4) corrected by Vladimir Joseph Stephan Orlovsky, May 02 2008
a(10)-a(15) by Robert Price, Dec 12 2010
Edited by Ray Chandler, Dec 23 2010
a(16)=58250 from Robert Price, Jan 29 2011

A135113 Integers k such that 10^k + 67 is a prime number.

Original entry on oeis.org

2, 4, 14, 26, 36, 60, 150, 410, 484, 972, 1942, 3694, 6926, 8582, 11930, 16076, 16276, 22820
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

The next k, if it exists, is > 100000. - Robert Price, Apr 25 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10067".

Examples

			4 is a term: 10^4 + 67 = 10000 + 67 = 10067, which is a prime number.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Extensions

Term 11930 from Robert Price, Mar 22 2010
Terms 1942, 3694, 6926, 8582, 16076, 16276, 22820 from Robert Price, Sep 04 2010
Edited by Ray Chandler, Dec 23 2010

A135114 Integers k such that 10^k + 69 is a prime number.

Original entry on oeis.org

1, 3, 4, 5, 10, 11, 16, 35, 49, 69, 119, 223, 400, 775, 1003, 1523, 2225, 6793, 7018, 13600, 76801
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

Next term in sequence, if one exists is > 100000. - Robert Price, Apr 25 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10069".

Examples

			5 is a term because 10^5 + 69 = 100000 + 69 = 100069, which is prime.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Extensions

Term 13600 from Robert Price, Mar 22 2010
Terms 1003, 1523, 2225, 6793, 7018 inserted by Robert Price, Oct 31 2010
Edited by Ray Chandler, Dec 23 2010
a(21)=76801 from Robert Price, Mar 03 2011

A135115 Integers k such that 10^k + 63 is a prime number.

Original entry on oeis.org

1, 2, 3, 11, 12, 37, 42, 64, 101, 131, 170, 366, 404, 771, 1454, 1696, 4415, 5208, 9027, 10978, 11264, 11651, 14432, 20655, 28220, 34623, 62523, 63986
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

If another term exists it is > 100000. - Robert Price, Apr 25 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10063".

Examples

			3 is a term because 10^3 + 63 = 1000 + 63 = 1063, which is prime.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Programs

  • Mathematica
    Select[Range[2000],PrimeQ[10^#+63]&] (* Harvey P. Dale, Jul 24 2009 *)

Extensions

Two additional terms from Harvey P. Dale, Jul 24 2009
One more term from Robert Price, Mar 22 2010
Eight more terms from Robert Price, Aug 14 2010
Edited by Ray Chandler, Dec 23 2010
a(27)=62523, a(28)=63986 from Robert Price, Jan 29 2011

A135116 Integers k such that 10^k + 61 is a prime number.

Original entry on oeis.org

1, 3, 4, 10, 12, 16, 33, 696, 739, 1764, 2577, 3198, 4242, 11104, 18081, 19587, 20799, 22986, 92178
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

The next term, if one exists is > 100000. - Robert Price, Jul 14 2010
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10061".

Examples

			4 is a term because 10^4 + 61 = 10000 + 61 = 10061, which is a prime number.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Extensions

Term 11104 from Robert Price, Mar 22 2010
Terms 1764, 2577, 3198, 4242, 18081, 19587, 20799, 22986 from Robert Price, Jul 14 2010
Edited by Ray Chandler, Dec 23 2010
a(19)=92178 from Robert Price, Apr 19 2011

A135117 Integers k such that 10^k + 87 is a prime number.

Original entry on oeis.org

1, 3, 9, 19, 39, 43, 121, 153, 1243, 14445, 15273, 26779
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

The next term, if one exists, is > 100000. - Robert Price, Apr 25 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10087".

Examples

			3 is a term because 10^3 + 87 = 1000 + 87 = 1087, which is a prime number.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Extensions

Term 14445 from Robert Price, Mar 22 2010
Terms 1243, 15273, 26779 from Robert Price, Oct 04 2010
Edited by Ray Chandler, Dec 23 2010

A135118 Integers k such that 10^k + 51 is a prime number.

Original entry on oeis.org

1, 2, 3, 13, 19, 81, 658, 1009, 1070, 1731, 2899, 4237, 5499, 18628, 28699, 47026
Offset: 1

Views

Author

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

Keywords

Comments

If more terms exist, then they are > 39456. - Robert Price, Aug 14 2010
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10051".

Examples

			3 is a term because 10^3 + 51 = 1000 + 51 = 1051, which is prime.

Links

Crossrefs

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Extensions

a(8)-a(15) from Robert Price, Aug 14 2010
Edited by Ray Chandler, Dec 23 2010
a(16) from Robert Price, Dec 27 2010
Showing 1-10 of 14 results. Next

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