|
%I #4 Jan 06 2016 11:34:07
%S 6,19,44,100,210,429,816,1534,2727,4753,7931,13044,20676,32360,49327,
%T 73959,108612,157751,224746,317514,440564,606496,823905,1110469,
%U 1480403,1957027,2563177,3335398,4302564,5520403,7021711,8888187,11173884
%N Number of 5Xn binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.
%C Row 5 of A266935.
%H R. H. Hardin, <a href="/A266938/b266938.txt">Table of n, a(n) for n = 1..57</a>
%e Some solutions for n=4
%e ..0..1..1..1....0..0..0..0....0..0..0..1....0..0..0..0....0..0..0..0
%e ..1..0..1..1....0..0..0..0....1..1..1..0....0..0..1..1....0..0..0..0
%e ..1..1..0..1....0..0..0..0....1..1..1..0....1..1..0..0....0..0..1..1
%e ..1..1..1..0....0..0..0..1....1..1..1..0....1..1..0..1....1..1..0..1
%e ..1..1..1..1....1..1..1..0....1..1..1..1....1..1..1..0....1..1..1..0
%Y Cf. A266935.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 06 2016
|
