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A154081 Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10. 0

%I #3 Mar 31 2012 12:35:22

%S 2772,12494,23493,40947,41096,46487,43627,32038,17016,8815,3707,2835,

%T 1541,2032,1008,876,876,832,788,744,696,696,696,696,696,696,696,696,

%U 696,696,696,696,696,696,696,696,696,696,696,696,696,696,696,696,696,696,696

%N Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10.

%C Value 696 starts at n=25 and continues through at least n=52.

%K nonn

%O 5,1

%A _R. H. Hardin_ Jan 04 2009

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Last modified August 17 21:11 EDT 2024. Contains 375227 sequences. (Running on oeis4.)