id:A015222 - OEIS Search Results

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Even square pyramidal numbers.

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14, 30, 140, 204, 506, 650, 1240, 1496, 2470, 2870, 4324, 4900, 6930, 7714, 10416, 11440, 14910, 16206, 20540, 22140, 27434, 29370, 35720, 38024, 45526, 48230, 56980, 60116, 70210, 73810, 85344, 89440, 102510, 107134, 121836, 127020 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`Even numbers of form n(n+1)(2n+1)/6`
	MATHEMATICA	`Select[ Table[ n(n+1)(2n+1)/6, {n, 100} ], EvenQ ]`
	CROSSREFS	`Adjacent sequences: A015219 A015220 A015221 this_sequence A015223 A015224 A015225` `Sequence in context: A104776 A101960 A075208 this_sequence A054103 A101183 A101444`
	KEYWORD	`nonn,easy`
	AUTHOR	`Mohammad K. Azarian (ma3(AT)evansville.edu)`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu).`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

AT&T Labs Research