id:A091775 - OEIS Search Results

Search: id:A091775

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a(n)=1+4^n+9^n+16^n.

+0
2

30, 354, 4890, 72354, 1108650, 17312754, 273234810, 4338079554, 69107159370, 1102, 999460754, 17623571298330, 281757423024354, 4506141560307690, 72080471098818, 354, 1153127396812683450, 18448597098193370754 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`n>0 a(n) = 5^(2n+1)/(2n+1)sum(k=0, 2n+1, (1/5)^kC(2n+1, k)*B(k)) where B(k) is the k-th Bernoulli number.`
	CROSSREFS	`Cf. A052539, A074515.` `Sequence in context: A115500 A125418 A107916 this_sequence A008656 A086864 A138441` `Adjacent sequences: A091772 A091773 A091774 this_sequence A091776 A091777 A091778`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 06 2004`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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