A153237 a(n) = A000079(n) - A153130(n).

0, 0, 0, 0, 9, 27, 63, 126, 252, 504, 1017, 2043, 4095, 8190, 16380, 32760, 65529, 131067, 262143, 524286, 1048572, 2097144, 4194297, 8388603, 16777215, 33554430, 67108860, 134217720, 268435449, 536870907, 1073741823, 2147483646

Offset

0,5

Links

Harvey P. Dale, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (3,-2,-1,3,-2).

Formula

a(n) = 9 *A153234(n). G.f. 9*x^4 / ( (x-1)*(2*x-1)*(1+x)*(x^2-x+1) ). - R. J. Mathar, Dec 17 2012

Mathematica

LinearRecurrence[{3, -2, -1, 3, -2}, {0, 0, 0, 0, 9}, 40] (* Harvey P. Dale, Dec 26 2021 *)

Crossrefs

Sequence in context: A254622 A340119 A271990 * A256327 A011923 A029875

Adjacent sequences: A153234 A153235 A153236 * A153238 A153239 A153240

Keyword

nonn,easy

Author

Paul Curtz, Dec 21 2008

Extensions

Definition corrected by Omar E. Pol, Dec 24 2008

Edited by N. J. A. Sloane, Dec 31 2008

Status

approved