id:A134354 - OEIS Search Results

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Integer nearest to expression 2 Pi n^(2 n + 1) e^(-2 n).

+0
2

1, 4, 34, 553, 13929, 504211, 24804343, 1592201163, 129266762933, 12950610156346, 1569397748147942, 226278584786787360, 38281932323382968320, 7510129222684065660928, 1691120063240224255246336 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Integers in this sequence are <= (n!)^2 (see A001044)`
	FORMULA	`a(n) = Round[2 Pi n^(2 n + 1)E^(-2 n)]`
	MATHEMATICA	`Table[Round[N[2 Pi n^(2 n + 1)E^(-2 n)]], {n, 1, 30}]`
	CROSSREFS	`Cf. A001044, A134354.` `Sequence in context: A002105 A081972 A158961 this_sequence A030243 A088077 A162079` `Adjacent sequences: A134351 A134352 A134353 this_sequence A134355 A134356 A134357`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 22 2007`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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