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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; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n)=sum{0<=k<=n, A130253(k)}=(n+1)*A130253(n-1)-1/2*(A001045(A130253(n-1)+1)-1)=(n+1)*A130250(n))-1/2*(A001045(A130250(n)+1)-1)=(n+1)*(1+A130249(n))-1/2*(A001045(A130249(n)+2)-1). G.f.: g(x)=1/(1-x)^2*sum{k>=0, x^A001045(k)}.
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CROSSREFS
| Cf. A130253, A130249, A130250, A130252, A130233, A130235, A130241, A130243, A130245, A130246. Also A105348, A001045.
Sequence in context: A056548 A065981 A130252 * A172472 A134918 A078916
Adjacent sequences: A130251 A130252 A130253 * A130255 A130256 A130257
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KEYWORD
| nonn
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AUTHOR
| Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), May 20 2007
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