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A263612 Palindromes in base 5 which are also squares. 3
0, 1, 4, 121, 10201, 12321, 114411, 1002001, 1234321, 100020001, 102030201, 121242121, 131141131, 10000200001, 10221412201, 12102420121, 131441144131, 1000002000001, 1002003002001, 1020304030201, 1143442443411, 1210024200121, 4133144413314, 4342230322434, 13431400413431, 100000020000001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..26.

G. J. Simmons, On palindromic squares of non-palindromic numbers, J. Rec. Math., 5 (No. 1, 1972), 11-19. [Annotated scanned copy]

CROSSREFS

Cf. A002778, A003166, A029988, A262611, A029989.

Sequence in context: A227525 A071129 A241366 * A033934 A144508 A169972

Adjacent sequences:  A263609 A263610 A263611 * A263613 A263614 A263615

KEYWORD

base,nonn

AUTHOR

N. J. A. Sloane, Oct 23 2015

STATUS

approved

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Last modified August 24 22:41 EDT 2019. Contains 326314 sequences. (Running on oeis4.)