A060062 Fifth column of triangle A060058.

1385, 50521, 663061, 5162421, 28862471, 127838711, 475638163, 1544454483, 4494470838, 11949575638, 29449955678, 68035028126, 148639284066, 309297261826, 616573557226, 1183184394986, 2194487337735, 3947417571735, 6906579371835, 11783600663835, 19647572529585

Offset

0,1

Comments

Fourfold iterated sums of squares; see A060061 for threefold case.

Links

T. D. Noe, Table of n, a(n) for n = 0..1000

Formula

G.f. (1385+32516*x+114318*x^2+87156*x^3+11025*x^4)/(1-x)^13 = p(4, x)/(1-x)^(4*3+1) with p(2, x)=sum(A060063(4, m)*x^m, m=0..4).

Mathematica

CoefficientList[Series[(1385+32516*x+114318*x^2+87156*x^3+11025*x^4)/(1-x)^13 , {x, 0, 20}], x] (* Indranil Ghosh, Feb 21 2017 *)

Crossrefs

Sequence in context: A345780 A302900 A317284 * A181991 A212222 A045103

Adjacent sequences: A060059 A060060 A060061 * A060063 A060064 A060065

Keyword

nonn,easy

Author

Wolfdieter Lang, Mar 16 2001

Status

approved