id:A028816 - OEIS Search Results

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Numbers n such that n^2 is a palindrome with an odd number of digits.

+0
4

0, 1, 2, 3, 11, 22, 26, 101, 111, 121, 202, 212, 264, 307, 1001, 1111, 2002, 2285, 2636, 10001, 10101, 10201, 11011, 11111, 11211, 20002, 20102, 22865, 24846, 30693, 100001, 101101, 110011, 111111, 200002, 1000001, 1001001, 1002001 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`P. De Geest, Subsets of Palindromic Squares`
	CROSSREFS	`Cf. A028817.` `Sequence in context: A023182 A049083 A002778 this_sequence A128921 A118595 A057135` `Adjacent sequences: A028813 A028814 A028815 this_sequence A028817 A028818 A028819`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com)`

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Last modified December 6 13:11 EST 2009. Contains 170427 sequences.

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