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 1-3 of 3 results.

A083836 Palindromes of the form 6n + 1 where n is also a palindrome. palindromes arising in A083835.

Original entry on oeis.org

7, 55, 595, 727, 787, 5995, 59995, 72127, 72727, 78187, 78787, 599995, 5999995, 7212127, 7218127, 7272727, 7278727, 7812187, 7818187, 7872787, 7878787, 59999995, 599999995, 721212127, 721272127, 721818127, 721878127, 727212727
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 09 2003

Keywords

Crossrefs

Programs

  • Mathematica
    6#+1&/@Select[Range[12121*10^4],AllTrue[{#,6#+1},PalindromeQ]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jun 15 2018 *)

Extensions

More terms from Ray Chandler, May 21 2003

A083837 Smallest palindrome n such that kn + 1 is a palindrome, or 0 if no such number exists.

Original entry on oeis.org

1, 1, 1, 1, 1, 1, 1, 1, 6, 1, 55, 0, 5, 7, 8, 2, 0, 3, 4, 5, 1, 5, 0, 5, 4, 5, 2, 5, 3, 4, 0, 1, 7, 5, 4, 5, 0, 2, 8, 3, 0, 0, 1, 8, 4, 7, 9, 0, 2, 2, 0, 6, 0, 1, 2, 7, 6, 161, 7, 2, 0, 6, 8, 0, 1, 9, 3, 8, 7, 2, 0, 7, 8, 0, 2, 1, 3, 4, 0, 2, 0, 7, 4, 6, 2, 0, 1, 4, 6, 2, 0, 8, 4, 6, 2, 0, 3, 1, 6, 1, 0, 9, 0, 3
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 09 2003

Keywords

Comments

0 in sequence indicates no palindrome < 10^15 - Ray Chandler, Jul 13 2003

Examples

			a(3) = 1: 3*1 + 1 = 4; a(11) = 55, 55*11+1=606.
		

Crossrefs

Extensions

Corrected and extended by Ray Chandler, May 22 2003

A083838 Smallest palindrome of the form nk+1 where k is also a palindrome:, or 0 if no such number exists; palindromes arising in A083837.

Original entry on oeis.org

2, 3, 4, 5, 6, 7, 8, 9, 55, 11, 606, 0, 66, 99, 121, 33, 0, 55, 77, 101, 22, 111, 0, 121, 101, 131, 55, 141, 88, 121, 0, 33, 232, 171, 141, 181, 0, 77, 313, 121, 0, 0, 44, 353, 181, 323, 424, 0, 99, 101, 0, 313, 0, 55, 111, 393, 343, 9339, 414, 121, 0, 373, 505, 0, 66, 595
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 09 2003

Keywords

Comments

0 in sequence indicates no palindrome < 10^15 - Ray Chandler, Jul 13 2003

Examples

			a(9)=6*9+1=55, a(11)=55*11+1=606.
		

Crossrefs

Extensions

Corrected and extended by Ray Chandler, May 22 2003
Showing 1-3 of 3 results.