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.

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A062599 Numbers k such that 33^k - 32^k is prime.

Original entry on oeis.org

3, 7, 547, 5419, 16301, 36433
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
No other terms less than 100000. - Robert Price, Apr 03 2012
All terms are prime. - Robert Price, Apr 03 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

  • Mathematica
    Select[Range[100000], PrimeQ[33^# - 32^#] &]
  • PARI
    is(n)=ispseudoprime(33^n-32^n) \\ Charles R Greathouse IV, Jun 13 2017

Extensions

a(5)-a(6) from Robert Price with assistance from Adam Marciniec, Apr 03 2012

A062600 Numbers k such that 34^k - 33^k is prime.

Original entry on oeis.org

2, 23, 211, 797, 1181
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
No other terms less than 100000. - Robert Price, Apr 30 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

A062601 Numbers k such that 35^k - 34^k is prime.

Original entry on oeis.org

3, 5, 11, 157, 2557, 13537, 73477, 85243
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
No other terms less than 100000. - Robert Price, May 21 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

Extensions

Added a(6)-a(8) (computer runs by Adam Marciniec) from Robert Price, May 21 2012

A062603 Numbers k such that 37^k - 36^k is prime.

Original entry on oeis.org

2, 83, 113, 1429, 3919, 18427, 38461
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
a(8) > 10^5. - Robert Price, Jun 12 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

Extensions

a(6) and a(7) (computed by Adam Marciniec) from Robert Price, Jun 12 2012

A062605 Numbers k such that 39^k - 38^k is prime.

Original entry on oeis.org

3, 7, 13, 41
Offset: 1

Views

Author

Mike Oakes, May 18 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
a(5) > 10^5. - Robert Price, Nov 13 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

A062606 Numbers k such that 40^k - 39^k is prime.

Original entry on oeis.org

2, 37, 61, 227, 1163, 2473
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
No other terms less than 10^5. - Robert Price, Jul 24 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

A062607 Numbers k such that 41^k - 40^k is prime.

Original entry on oeis.org

7, 11, 13, 67, 1051, 9257, 9521, 15077, 21851, 53323, 69427
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
a(12) > 10^5. - Robert Price, Jul 31 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

Extensions

a(8)-a(11) (Computed by Adam Marciniec) from Robert Price, Jul 31 2012

A062613 Numbers k such that 47^k - 46^k is prime.

Original entry on oeis.org

5, 17, 67, 73, 691, 9781, 79201, 89113
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
a(9) > 10^5 - Robert Price, Oct 10 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

Extensions

a(7)-a(8) from Robert Price, Oct 10 2012 (computer run by Adam Marciniec)

A062615 Numbers k such that 49^k - 48^k is prime.

Original entry on oeis.org

2, 3, 7, 379
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
a(5) > 10^5. - Robert Price, Dec 03 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Programs

A062616 Numbers k such that 50^k - 49^k is a prime.

Original entry on oeis.org

3, 31, 67, 197, 2473, 2477, 35899
Offset: 1

Views

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

Comments

Terms greater than 1000 are often only strong pseudoprimes.
a(8) > 10^5. - Robert Price, Dec 03 2012

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Extensions

a(7) from Robert Price, Dec 03 2012
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