id:A027719 - OEIS Search Results

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Numbers n such that n^2 + 1 is a palindrome.

+0
4

0, 1, 2, 10, 25, 100, 1000, 1020, 1489, 2248, 10000, 10090, 100000, 100910, 102020, 167491, 1000000, 1000200, 1009090, 2744934, 10000000, 10000900, 10090910, 24917195, 100000000, 100909090, 103226660, 271867456 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`P. De Geest, Palindromic incremented squares of the form n^2+1`
	CROSSREFS	`Cf. A002522, A027720.` `Sequence in context: A120550 A119062 A058373 this_sequence A069894 A045605 A009307` `Adjacent sequences: A027716 A027717 A027718 this_sequence A027720 A027721 A027722`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com)`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research