

A232409


Number of (n+1) X (3+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.


1



973, 44971, 2189991, 107913855, 5322933313, 262249675165, 12924602609687, 636974571589143, 31392224093121163, 1547115367969767881, 76247135423218512743, 3757719192867286695513, 185193231246257132276941
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