A091026 Fifth column (m=6) of array A090452.

5, 114, 771, 3235, 10365, 27825, 65828, 141552, 282375, 530090, 946275, 1619007, 2671123, 4270245, 6640800, 10078280, 14966001, 21794634, 31184795, 43912995, 60941265, 83450785, 112879860, 150966600, 199796675, 261856530, 340092459

Offset

0,1

Links

Table of n, a(n) for n=0..26.

Index entries for linear recurrences with constant coefficients, signature (9, -36, 84, -126, 126, -84, 36, -9, 1).

Formula

a(n)= (n+1)*(n+2)*(n^6+45*n^5+745*n^4+5595*n^3+18694*n^2+22440*n+7200)/2880. 2880=8!/(2*7).

G.f.: (5+69*x-75*x^2-20*x^3+60*x^4-30*x^5+5*x^6)/(1-x)^9.

Crossrefs

Cf. A090454, A091027.

Sequence in context: A355074 A053712 A325914 * A346273 A216342 A207999

Adjacent sequences: A091023 A091024 A091025 * A091027 A091028 A091029

Keyword

nonn,easy

Author

Wolfdieter Lang, Dec 23 2003

Status

approved