id:A152734 - OEIS Search Results

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5 times pentagonal numbers: 5n(3n-1)/2.

+0
4

0, 5, 25, 60, 110, 175, 255, 350, 460, 585, 725, 880, 1050, 1235, 1435, 1650, 1880, 2125, 2385, 2660, 2950, 3255, 3575, 3910, 4260, 4625, 5005, 5400, 5810, 6235, 6675, 7130, 7600, 8085, 8585, 9100, 9630, 10175, 10735, 11310, 11900 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) = A000326(n)*5.`
	MATHEMATICA	`s=0; lst={s}; Do[s+=n; AppendTo[lst, s], {n, 5, 7!, 15}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 03 2009]`
	CROSSREFS	`Cf. A000326.` `Sequence in context: A045576 A146649 A146412 this_sequence A080856 A060820 A146404` `Adjacent sequences: A152731 A152732 A152733 this_sequence A152735 A152736 A152737`
	KEYWORD	`easy,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), Dec 11 2008`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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