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%I #36 May 24 2018 15:58:10
%S 1,11,471,122038,85820809,96018336018,146662126879117,
%T 291352421255114277,734102568216405642199,2304488853198195872625924,
%U 8882860158091727486388086786,41519759838668575020971562079517,232748666229847254694256869145439898,1549417862125158239133077344950011140191
%N Number of nonisomorphic binary n X n matrices with five 1's per column under row and column permutations.
%H Andrew Howroyd, <a href="/A247598/b247598.txt">Table of n, a(n) for n = 5..40</a>
%H StackExchange, <a href="http://math.stackexchange.com/questions/616834/">How many arrays with crossed cells, order of rows/columns irrelevant</a>, Dec 13 2013
%p seq(matrix_marks(n,5), n=3..15); # Using the uploaded program to A247417
%o (PARI) \\ See A304942 for Blocks
%o a(n) = Blocks(n, n, 5); \\ _Andrew Howroyd_, May 24 2018
%Y Column k=5 of A304942.
%Y Cf. A247417, A247596, A247597.
%K nonn
%O 5,2
%A _Marko Riedel_, Sep 21 2014
%E Terms a(16) and beyond from _Andrew Howroyd_, May 24 2018