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A028367
a(n) = (2^n-2)!.
1
1, 2, 720, 87178291200, 265252859812191058636308480000000, 31469973260387937525653122354950764088012280797258232192163168247821107200000000000000
OFFSET
1,2
LINKS
I. Strazdins, Universal affine classification of Boolean functions, Acta Applic. Math. 46 (1997), 147-167.
MATHEMATICA
Table[(2^n - 2)!, {n, 7}] (* Vincenzo Librandi, Jan 05 2020 *)
PROG
(PARI) a(n) = (2^n-2)!; \\ Michel Marcus, Jan 04 2020
(Magma) [Factorial(2^n-2): n in [1..7]]; // Vincenzo Librandi, Jan 05 2020
CROSSREFS
Cf. A028366.
Sequence in context: A185667 A119781 A362187 * A000197 A036298 A341078
KEYWORD
nonn
EXTENSIONS
Offset corrected by Sean A. Irvine, Jan 03 2020
STATUS
approved