A028370 a(n) = (2^(n-1))!*2^(2^(n-1)-1).

1, 4, 192, 5160960, 685597979049984000, 565069169599661316277495386764665159680000000

Offset

1,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..11

I. Strazdins, Universal affine classification of Boolean functions, Acta Applic. Math. 46 (1997), 147-167.

Prog

(Magma) [Factorial(2^(n-1))*2^(2^(n-1)-1): n in [1..7]]; // Vincenzo Librandi, Jun 03 2011

Crossrefs

Sequence in context: A007341 A203516 A159783 * A042127 A219163 A017546

Adjacent sequences: A028367 A028368 A028369 * A028371 A028372 A028373

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved