id:A027720 - OEIS Search Results

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Palindromes of form n^2 + 1.

+0
5

1, 2, 5, 101, 626, 10001, 1000001, 1040401, 2217122, 5053505, 100000001, 101808101, 10000000001, 10182828101, 10408080401, 28053235082, 1000000000001, 1000400040001, 1018262628101, 7534662664357 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`P. De Geest, Palindromic incremented squares of the form n^2+1`
	CROSSREFS	`Cf. A002522, A027719.` `Sequence in context: A093308 A120800 A066618 this_sequence A132482 A136106 A122696` `Adjacent sequences: A027717 A027718 A027719 this_sequence A027721 A027722 A027723`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com)`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research