A045642 Palindromic and divisible by 7.

0, 7, 77, 161, 252, 343, 434, 525, 595, 616, 686, 707, 777, 868, 959, 1001, 1771, 2002, 2772, 3003, 3773, 4004, 4774, 5005, 5775, 6006, 6776, 7007, 7777, 8008, 8778, 9009, 9779, 10101, 10801, 11011, 11711, 12621, 13531, 14441, 15351, 16261, 16961

Offset: 1

Author

Jeff Burch

Keywords

• nonn
• base

Links

• Paolo Xausa, Table of n, a(n) for n = 1..2000

Crossrefs

Intersection of A002113 and A008589.

Cf. A029951, A045638, A045639, A043040, A045641, A045643, A045644, A083852.

Programs

Mathematica

Select[Range[0, 21000, 7], PalindromeQ] (* Paolo Xausa, Jul 06 2025 *)

Extensions

a(1) = 0 prepended by Paolo Xausa, Jul 07 2025