A259330 Ceiling of ((2^n)!)/(2^(n*(n+1))*Product((2^i-1)^2,i=1..n)).

1, 1, 1, 202, 2569966024555163105, 76230976900860740792605252290337123070878181006452224000000000000

Offset

1,4

Links

Table of n, a(n) for n=1..6.

C. S. Lorens, Invertible Boolean functions, IEEE Trans. Electron. Computers, EC-13 (1964), 529-541.

C. S. Lorens, Invertible Boolean functions, IEEE Trans. Electron. Computers, EC-13 (1964), 529-541. [Annotated scan of page 530 only]

Crossrefs

Sequence in context: A209501 A198526 A198981 * A090486 A348664 A228320

Adjacent sequences: A259327 A259328 A259329 * A259331 A259332 A259333

Keyword

nonn

Author

N. J. A. Sloane, Jun 24 2015

Status

approved