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 10 results.

A077295 Partition the concatenation 1234567...of natural numbers into successive strings which are even, all different and > 2. (0 never taken as the most significant digit.)

Original entry on oeis.org

12, 34, 56, 78, 910, 1112, 1314, 1516, 1718, 1920, 212, 22, 32, 4, 252, 6, 272, 8, 2930, 3132, 3334, 3536, 3738, 3940, 414, 24, 344, 454, 64, 74, 84, 950, 5152, 5354, 5556, 5758, 5960, 616, 26, 36, 46, 566, 676, 86, 970, 7172, 7374, 7576, 7778, 7980, 818, 28, 38, 48, 58, 68, 788, 8990, 9192, 9394, 9596, 9798, 99100
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A077293, A077294, A077296, A077297, A077298, A077299, A077300, A077301, A077302.

Extensions

Corrected and extended by Kyle Shearer (kss198(AT)psu.edu), Mar 14 2006
More terms from Franklin T. Adams-Watters, May 30 2006
Offset changed by Sean A. Irvine, May 14 2025

A077297 Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 4, all different and > 4. (0 never taken as the most significant digit.)

Original entry on oeis.org

12, 3456, 789101112, 13141516, 17181920, 212, 2232, 4252, 6272, 8, 29303132, 33343536, 37383940, 41424, 344, 45464, 748, 49505152, 53545556, 57585960, 616, 2636, 4656, 6676, 869707172, 73747576, 77787980, 81828, 384, 85868, 788
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A077293, A077294, A077295, A077296, A077298, A077299, A077300, A077301, A077302.

Extensions

Corrected and extended by Franklin T. Adams-Watters, May 30 2006
Offset changed by Sean A. Irvine, May 14 2025

A077298 Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 5, all different and > 5. (0 never taken as the most significant digit.)

Original entry on oeis.org

12345, 678910, 1112131415, 1617181920, 2122232425, 2627282930, 3132333435, 3637383940, 4142434445, 4647484950, 515, 25, 35, 45, 55, 65, 75, 85, 960, 6162636465, 6667686970, 7172737475, 7677787980, 8182838485, 8687888990
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A077293, A077294, A077295, A077296, A077297, A077299, A077300, A077301, A077302.

Extensions

More terms from R. J. Mathar, Mar 13 2006
More terms from Kyle Shearer (kss198(AT)psu.edu), Mar 14 2006
Offset changed by Sean A. Irvine, May 14 2025

A077299 Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 6, all different and > 6. (0 never taken as the most significant digit.)

Original entry on oeis.org

12, 3456, 78, 9101112, 1314, 15161718, 1920, 21222, 324, 252, 627282, 930, 3132, 33343536, 3738, 39404142, 4344, 45464748, 4950, 51525354, 5556, 57585960, 6162, 636, 4656, 66, 768, 69707172, 7374, 75767778, 7980, 81828, 384, 858, 687888, 990
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A077293, A077294, A077295, A077296, A077297, A077298, A077300, A077301, A077302.

Extensions

Corrected and extended by R. J. Mathar, Mar 13 2006
Offset changed by Sean A. Irvine, May 14 2025

A077300 Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 7, all different and > 7 (0 is never taken as the most significant digit).

Original entry on oeis.org

1234567891011, 12131, 4151, 6171819202122, 2324, 252, 6272, 829303132, 33343536373, 83940414243, 4445, 46474849505, 15253, 5455565758596061626, 364, 6566, 6768697071727374, 7576777879808182838485, 868, 78889909, 192939495
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A077293, A077294, A077295, A077296, A077297, A077298, A077299, A077301, A077302.

Extensions

More terms from Sam Alexander, Jan 02 2004
Offset changed by Sean A. Irvine, May 14 2025

A077301 Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 8, all different and > 8. (0 never taken as the most significant digit.)

Original entry on oeis.org

123456, 789101112, 1314151617181920, 2122232, 42526272, 82930313233343536, 3738394041424, 344, 45464, 74849505152, 5354555657585960, 616, 26364656, 66768, 6970717273747576, 777879808, 1828384, 858687888, 9909192
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A077293, A077294, A077295, A077296, A077297, A077298, A077299, A077300, A077302.

Extensions

Corrected and extended by R. J. Mathar, Mar 13 2006
Offset changed by Sean A. Irvine, May 14 2025

A077302 Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 9, all different and > 9. (0 never taken as the most significant digit.)

Original entry on oeis.org

12345678, 91011121314151617, 18, 1920212223242526, 27, 2829303, 1323, 33435, 36, 3738394041424344, 45, 4647484950515253, 54, 5556575859606, 162, 63, 64656, 66768697071, 72, 7374757677787980, 81, 828, 384858, 687888, 990, 9192939495969798, 99
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A077293, A077294, A077295, A077296, A077297, A077298, A077299, A077300, A077301.

Extensions

More terms from Ray G. Opao, Oct 21 2004
Corrected by Sune Kristian Jakobsen (suja01(AT)ceus.dk), Oct 01 2007
Offset changed by Sean A. Irvine, May 14 2025

A077303 Partition the concatenation 235711131719232931...of prime numbers into successive strings such that the n-th string is a multiple of n and >n.

Original entry on oeis.org

2, 357111317192, 32931, 3741434753596, 16771737983899710, 110310, 710911312713, 11371391491511571631671731791811911931971992, 11223, 22722923323924125125726326927127728128329330, 7311313317, 33133734734935335936
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Crossrefs

Cf. A033308, A077293, A077294, A077295, A077296, A077297, A077298, A077299, A077300, A077301, A077302.

Extensions

More terms from Franklin T. Adams-Watters, May 30 2006
Offset changed by Sean A. Irvine, May 14 2025

A077304 Partition the concatenation 235711131719232931...of prime numbers into successive strings such that the n-th string is a multiple of prime(n) and > prime(n).

Original entry on oeis.org

2357111317192, 32931, 374143475, 35, 961677173798, 38997101, 103107109113127131137139149151157163167173179181191193197199, 211223, 227229233239241, 251257263269, 27127728, 12832933073, 11313317331337
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Comments

a(5)=961677173798 since 961677173798 = prime(5)*87425197618 = 11*87425197618 > 11. - R. Piyo (nagoya314(AT)yahoo.com), Dec 11 2004

Crossrefs

Cf. A033308, A077293, A077294, A077295, A077296, A077297, A077298, A077299, A077300, A077301, A077302, A077303.

Extensions

Corrected by R. Piyo (nagoya314(AT)yahoo.com), Dec 11 2004
More terms from Franklin T. Adams-Watters, May 30 2006

A077305 Partition the concatenation 468910121415161820212224252627283032... of composite numbers into successive strings such that the n-th string is a multiple of prime(n) and > prime(n).

Original entry on oeis.org

4, 6, 8910, 121415, 161820212224, 25262728303233343, 536383940424445464849505152, 5455565, 758606263, 6465666, 8697072747576777880818, 2848586878890919293949, 59698991001021041051061081101111121141151161171181191201
Offset: 1

Views

Author

Amarnath Murthy, Nov 03 2002

Keywords

Examples

			a(4) = 121415 is a multiple of prime(4) = 7.

Crossrefs

Cf. A077293, A077294, A077295, A077296, A077297, A077298, A077299, A077300, A077301, A077302, A077303, A077304.
Cf. A129808.

Extensions

More terms from Franklin T. Adams-Watters, May 30 2006
Showing 1-10 of 10 results.

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