A158610 Expansion of (1+15*x)/(1-x-256*x^2).

1, 16, 272, 4368, 74000, 1192208, 20136208, 325341456, 5480210704, 88767623440, 1491701563664, 24216213164304, 406091813462288, 6605442383524112, 110564946629869840, 1801558196812042512, 30106184534058721552

Offset

0,2

References

H. S. M. Coxeter, Regular Polytopes, 3rd ed., Dover, NY, 1973, page 221.

Links

Table of n, a(n) for n=0..16.

Index entries for linear recurrences with constant coefficients, signature (1,256).

Formula

From Philippe Deléham, Mar 26 2009: (Start)

a(n) = a(n-1) + 256*a(n-2), a(0)=1, a(1)=16.

G.f.: (1+15x)/(1-x-256*x^2). (End)

Mathematica

LinearRecurrence[{1, 256}, {1, 16}, 20] (* Harvey P. Dale, Jan 10 2015 *)

Crossrefs

Sequence in context: A249391 A197622 A002303 * A221176 A231695 A363754

Adjacent sequences: A158607 A158608 A158609 * A158611 A158612 A158613

Keyword

nonn,easy

Author

Roger L. Bagula, Mar 22 2009

Status

approved