A053481 First differences of A029767.

2, 11, 76, 654, 6816, 83880, 1193760, 19318320, 350622720, 7056927360, 156031142400, 3760042809600, 98093779660800, 2754553785984000, 82841868639129600, 2656672553703168000, 90498598469959680000, 3263440333591646208000

Offset

0,1

Links

G. C. Greubel, Table of n, a(n) for n = 0..400

Formula

a(n) = (n+1)!*(2^(n+2) -1) - n!*(2^(n+1) -1) for n>=0. - G. C. Greubel, Jan 19 2017

Mathematica

a[n_] := (n - 1)! * (2^n - 1); Table[a[n+2] - a[n+1], {n, 0, 25}] (* G. C. Greubel, Jan 19 2017 *)

Prog

(PARI) for(n=0, 25, print1(( (n+1)!*(2^(n+2) -1) - n!*(2^(n+1) -1)), ", ")) \\ G. C. Greubel, Jan 19 2017

Crossrefs

Sequence in context: A365146 A350680 A349408 * A368794 A110329 A221844

Adjacent sequences: A053478 A053479 A053480 * A053482 A053483 A053484

Keyword

nonn

Author

N. J. A. Sloane, Jan 15 2000

Status

approved