id:A024700 - OEIS Search Results

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a(n) = (-1 + p^2)/3, where p = p(n+2).

+0
2

8, 16, 40, 56, 96, 120, 176, 280, 320, 456, 560, 616, 736, 936, 1160, 1240, 1496, 1680, 1776, 2080, 2296, 2640, 3136, 3400, 3536, 3816, 3960, 4256, 5376, 5720, 6256, 6440, 7400, 7600, 8216, 8856, 9296, 9976, 10680, 10920, 12160, 12416, 12936, 13200, 14840, 16576, 17176 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`f[n_]:=(Prime[n]^2-1)/3; lst={}; Do[a=f[n]; If[IntegerQ[a], AppendTo[lst, a]], {n, 2, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Oct 17 2009]`
	CROSSREFS	`Sequence in context: A057584 A063526 A156331 this_sequence A108576 A108235 A052207` `Adjacent sequences: A024697 A024698 A024699 this_sequence A024701 A024702 A024703`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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