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A053481
First differences of A029767.
1
2, 11, 76, 654, 6816, 83880, 1193760, 19318320, 350622720, 7056927360, 156031142400, 3760042809600, 98093779660800, 2754553785984000, 82841868639129600, 2656672553703168000, 90498598469959680000, 3263440333591646208000
OFFSET
0,1
LINKS
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
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 15 2000
STATUS
approved