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A229778 Number of 6X6 0..n arrays with rows in lexicographically nondecreasing order and columns in nonincreasing order.

%I A229778 #5 Jul 23 2025 05:47:12
%S A229778 924,1976588468,90462380211862,322942973130396495,
%T A229778 245200063296427870294,65350451915118676316696,
%U A229778 8161432175844147542615052,573385480689864447112662651,25636132281885860529849116700
%N A229778 Number of 6X6 0..n arrays with rows in lexicographically nondecreasing order and columns in nonincreasing order.
%C A229778 Row 6 of A229774
%e A229778 Some solutions for n=1
%e A229778 ..0..0..0..0..0..0....1..1..1..1..1..1....1..0..0..0..0..0....1..0..0..0..0..0
%e A229778 ..1..0..0..0..0..0....1..1..1..1..1..1....1..0..0..0..0..0....1..0..0..0..0..0
%e A229778 ..1..1..1..0..0..0....1..1..1..1..1..1....1..0..0..0..0..0....1..0..0..0..0..0
%e A229778 ..1..1..1..1..1..0....1..1..1..1..1..1....1..1..1..0..0..0....1..0..0..0..0..0
%e A229778 ..1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..1..0....1..1..0..0..0..0
%e A229778 ..1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..1..0....1..1..1..0..0..0
%K A229778 nonn
%O A229778 1,1
%A A229778 _R. H. Hardin_, Sep 29 2013