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A034822 Numbers n such that there are no palindromic squares of length n. 7
2, 4, 8, 10, 14, 18, 20, 24, 30, 38, 40 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

P. De Geest, Palindromic Squares

Eric Weisstein's World of Mathematics, Palindromic Number

CROSSREFS

Cf. A002778, A002779, A034307.

Sequence in context: A153974 A290476 A189670 * A300781 A050567 A069879

Adjacent sequences:  A034819 A034820 A034821 * A034823 A034824 A034825

KEYWORD

nonn,base,hard,more

AUTHOR

Patrick De Geest, Oct 15 1998.

EXTENSIONS

Two more terms added by author, Apr 01 2002.

STATUS

approved

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Last modified September 23 02:13 EDT 2018. Contains 315271 sequences. (Running on oeis4.)