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 1-5 of 5 results.

A230222 Smallest of four consecutive palindromic primes with equal digital sum.

Original entry on oeis.org

185595581, 317565713, 10832723801, 10875857801, 16831813861, 16832623861, 33396769333, 36215951263, 39003830093, 1069319139601, 1075309035701, 1181969691811, 1221739371221, 1269056509621, 1270668660721, 1292808082921, 1320348430231, 1385647465831
Offset: 1

Views

Author

Shyam Sunder Gupta, Oct 12 2013

Keywords

Examples

			185595581 is in the sequence because 185595581, 185676581, 185757581 and 185838581 are consecutive palindromic primes and the sum of the digits of each = 47.

Links

Crossrefs

Cf. A002385, A007953, A007605, A210629, A230199

A227894 Smallest of five consecutive palindromic primes with equal digital sum.

Original entry on oeis.org

16831813861, 3026159516203, 303551090155303, 310917383719013, 324260616062423, 705345191543507, 906794646497609, 979863191368979, 10245455355454201, 10504462826440501, 10591066266019501, 10899190809199801, 10940832823804901, 11140913931904111
Offset: 1

Views

Author

Shyam Sunder Gupta, Oct 14 2013

Keywords

Examples

			16831813861 is in the sequence because 16831813861, 16832623861, 16833433861, 16834243861 and 16835053861 are consecutive palindromic primes and the sum of the digits of each = 46.

Links

Crossrefs

Cf. A002385, A007953, A007605, A210629, A230199, A230222, A230229.

A230220 Smaller of two consecutive palindromic primes with equal digital sum.

Original entry on oeis.org

11, 16661, 31513, 74747, 75557, 1035301, 1074701, 1303031, 1363631, 1374731, 1557551, 1646461, 1714171, 1777771, 1909091, 3075703, 3127213, 3452543, 3627263, 3635363, 3646463, 3746473, 3784873, 3948493, 3983893, 7057507, 7302037, 7354537, 7365637, 7622267
Offset: 1

Views

Author

Shyam Sunder Gupta, Oct 11 2013

Keywords

Examples

			11 is in the sequence because 11 and 101 are consecutive palindromic primes and the sum of the digits of each = 2.

Links

Crossrefs

Cf. A002385, A007953, A007605, A066540, A230199.

A230221 Smallest of three consecutive palindromic primes with equal digital sum.

Original entry on oeis.org

74747, 3627263, 110343011, 120565021, 127747721, 156262651, 185595581, 185676581, 304585403, 309272903, 317565713, 317646713, 329585923, 340191043, 350474053, 368171863, 368696863, 375070573, 376080673, 383666383, 398676893, 728555827, 923393329, 926787629
Offset: 1

Views

Author

Shyam Sunder Gupta, Oct 12 2013

Keywords

Examples

			74747 is in the sequence because 74747, 75557 and 76367 are consecutive palindromic primes and the sum of the digits of each = 29.

Links

Crossrefs

Cf. A002385, A007953, A007605, A209396, A230199.

A230229 a(n) is the smallest palindromic prime that is the first of n consecutive palindromic primes with equal digit sum.

Original entry on oeis.org

2, 11, 74747, 185595581, 16831813861, 94350482728405349, 3842148274728412483, 30308322353935322380303
Offset: 1

Views

Author

Shyam Sunder Gupta, Oct 12 2013

Keywords

Comments

a(9) > 10^24.

Examples

			a(3) = 74747, since 74747, 75557 and 76367 are three consecutive palindromic primes with digit sum 29 and this is the first occurrence of three consecutive palindromic primes with equal digit sum.

Crossrefs

Cf. A071613, A002385, A007953, A007605, A230199.

Extensions

a(8) from Shyam Sunder Gupta, Nov 09 2013
Showing 1-5 of 5 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.