A089276 Coefficient triangle of polynomials used for numerator of g.f.s for column sequences of array A078739.

1, 1, 8, 1, 48, 180, 1, 160, 3204, 8064, 1, 400, 24972, 311328, 604800, 1, 840, 125468, 4654656, 42454080, 68428800, 1, 1568, 476728, 40968960, 1073980368, 7803233280, 10897286400, 1, 2688, 1490328, 254542720, 15076235088, 306406471680

Offset

1,3

Comments

The polynomials are po(n,x) := sum(a(n,m)*x^m,m=0..n-1). Companion polynomials are pe(n,x) := sum(b(n,m)*x^m,m=0..n-1) with b(n,m) := A089275(n,m), n>=1, po(1,x) = 1 = pe(1,x).

For the recursion relation of these polynomials and the triangles see A089275.

Links

Table of n, a(n) for n=1..34.

Crossrefs

Sequence in context: A333403 A271060 A318576 * A051932 A347489 A038279

Adjacent sequences: A089273 A089274 A089275 * A089277 A089278 A089279

Keyword

nonn,easy,tabl

Author

Wolfdieter Lang, Nov 07 2003

Status

approved