id:A093722 - OEIS Search Results

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Integers of the form (n^2-1)/120.

+0
3

0, 1, 3, 7, 8, 14, 20, 29, 31, 42, 52, 66, 69, 85, 99, 118, 122, 143, 161, 185, 190, 216, 238, 267, 273, 304, 330, 364, 371, 407, 437, 476, 484, 525, 559, 603, 612, 658, 696, 745, 755, 806, 848, 902, 913, 969, 1015, 1074, 1086, 1147, 1197, 1261, 1274, 1340 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(-1-n)=a(n).`
	PROGRAM	`(PARI) {a(n)= (((n\43 +n%4)10+ (-1)^(n\2))^2 -1)/120 } /* Michael Somos Oct 17 2006 */`
	CROSSREFS	`Cf. A002381.` `Cf. a(n)=(A057538(n)^2-1)/120.` `Sequence in context: A106474 A127441 A067064 this_sequence A002381 A131559 A051211` `Adjacent sequences: A093719 A093720 A093721 this_sequence A093723 A093724 A093725`
	KEYWORD	`nonn`
	AUTHOR	`Michael Somos, Apr 13 2004`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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