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A088229
Number of n X n (0,1) matrices with distinct rows.
5
1, 2, 12, 336, 43680, 24165120, 53981544960, 476410007808000, 16517640193528320000, 2252801478912508197273600, 1212983979979000042023881932800, 2587892965783744956308448364029542400, 21943955209199862746410706867184116563968000
OFFSET
0,2
LINKS
FORMULA
a(n) = n! * binomial(2^n, n) = n! * A014070(n).
a(n) ~ 2^(n^2). - Vaclav Kotesovec, Jul 02 2016
MATHEMATICA
Table[(2^n)!/(2^n - n)!, {n, 1, 15}] (* Vaclav Kotesovec, Jul 02 2016 *)
CROSSREFS
Cf. A014070.
Sequence in context: A296622 A325756 A181142 * A060596 A074257 A192892
KEYWORD
nonn
AUTHOR
Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 03 2003
EXTENSIONS
More terms from Ray Chandler, Nov 06 2003
a(0)=1 prepended and terms a(12) and beyond from Andrew Howroyd, Jan 27 2020
STATUS
approved