id:A107659 - OEIS Search Results

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Sum 2^max(k,n-k),k=0..n.

+0
3

1, 4, 10, 24, 52, 112, 232, 480, 976, 1984, 4000, 8064, 16192, 32512, 65152, 130560, 261376, 523264, 1047040, 2095104, 4191232, 8384512, 16771072, 33546240, 67096576, 134201344, 268410880, 536838144, 1073692672, 2147418112 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(2n) = 2^n(2^(n+2)-3), a(2n+1) = 2^n(2^(n+3)-4)`
	CROSSREFS	`Cf. A027383.` `Sequence in context: A022569 A093831 A052365 this_sequence A162588 A080615 A097976` `Adjacent sequences: A107656 A107657 A107658 this_sequence A107660 A107661 A107662`
	KEYWORD	`nonn,easy`
	AUTHOR	`Mitch Harris (harris (AT) tcs.inf.tu-dresden.de)`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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