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A259330
Ceiling of ((2^n)!)/(2^(n*(n+1))*Product((2^i-1)^2,i=1..n)).
2
1, 1, 1, 202, 2569966024555163105, 76230976900860740792605252290337123070878181006452224000000000000
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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
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Last modified June 1 02:06 EDT 2024. Contains 373008 sequences. (Running on oeis4.)