A083837 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A083837

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

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,9

COMMENTS

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

LINKS

Table of n, a(n) for n=1..104.

EXAMPLE

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

CROSSREFS

Cf. A083829, A083830, A083832, A083834, A083835, A083838.

Sequence in context: A136237 A308281 A347211 * A049213 A165886 A339100