27856

Appears in sequences

• Number of n X 2 arrays containing 2 copies of 0..n-1 with no equal horizontal or vertical neighbors and new values introduced sequentially from 0.at n=6A265167
• T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal horizontal or vertical neighbors and new values introduced sequentially from 0.at n=34A265170
• a(n) = (Sum_{i=1..n-1} i^(n-2)) mod n^3.at n=31A284759
• Triangle read by rows giving the number of configurations of n indistinguishable pairs placed on the vertices of the ladder graph P_2 X P_n such that exactly k such pairs are joined by an edge.at n=28A325753