id:A130483 - OEIS Search Results

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Sum {0<=k<=n, k mod 5} (Partial sums of A010874).

+0
26

0, 1, 3, 6, 10, 10, 11, 13, 16, 20, 20, 21, 23, 26, 30, 30, 31, 33, 36, 40, 40, 41, 43, 46, 50, 50, 51, 53, 56, 60, 60, 61, 63, 66, 70, 70, 71, 73, 76, 80, 80, 81, 83, 86, 90, 90, 91, 93, 96, 100, 100, 101, 103, 106, 110, 110, 111, 113, 116, 120, 120, 121, 123, 126, 130, 130 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)=10floor(n/5)+A010874(n)(A010874(n)+1)/2. G.f.: g(x)=(4x^4+3x^3+2x^2+x)/((1-x^5)(1-x)).`
	CROSSREFS	`Cf. A010872, A010873, A010875, A010876, A010877. A130481, A130482, A130484, A130485.` `Adjacent sequences: A130480 A130481 A130482 this_sequence A130484 A130485 A130486` `Sequence in context: A138797 A009019 A032570 this_sequence A115012 A135738 A073851`
	KEYWORD	`nonn`
	AUTHOR	`Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), May 29 2007`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

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