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A130252 Partial sums of A130250. 9
0, 1, 4, 7, 11, 15, 20, 25, 30, 35, 40, 45, 51, 57, 63, 69, 75, 81, 87, 93, 99, 105, 112, 119, 126, 133, 140, 147, 154, 161, 168, 175, 182, 189, 196, 203, 210, 217, 224, 231, 238, 245, 252, 259, 267, 275, 283, 291, 299, 307, 315, 323, 331, 339, 347, 355, 363, 371 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

If the initial zero is omitted, partial sums of A130253.

LINKS

Table of n, a(n) for n=0..57.

FORMULA

a(n)=sum{0<=k<=n, A130250(k)}=n*ceiling(log_2(3n-1))-1/2*A001045(ceiling(log_2(3n-1))+1)-1). G.f.: g(x)=1/(1-x)^2*sum{k>=0, x^A001045(k)}.

CROSSREFS

Cf. A130249, A130251, A130253, A130252, A130234, A130236, A130242, A130244. Also A105348, A001045.

Sequence in context: A065981 A244240 * A130254 A278114 A263996 A172472

Adjacent sequences:  A130249 A130250 A130251 * A130253 A130254 A130255

KEYWORD

nonn

AUTHOR

Hieronymus Fischer, May 20 2007

STATUS

approved

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Last modified April 27 01:03 EDT 2018. Contains 303149 sequences. (Running on oeis4.)