39072

Appears in sequences

• Number of rooted toroidal maps with 2 faces and n vertices and without separating cycles or isthmuses.at n=8A006422
• Number of permutations of {1,...,n} avoiding adjacent step pattern up, down, down, down, up, down.at n=8A177536
• 1/4 the number of (2n)X(2n) 0..3 symmetric matrices with every element equal to two horizontal and vertical neighbors.at n=3A211078
• Number of length n+5 0..3 arrays with no three disjoint pairs in any consecutive six terms having the same sum.at n=2A248443
• T(n,k)=Number of length n+5 0..k arrays with no three disjoint pairs in any consecutive six terms having the same sum.at n=12A248448
• Number of length 3+5 0..n arrays with no three disjoint pairs in any consecutive six terms having the same sum.at n=2A248451
• Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k UHU configurations, where U=(0,1), H(1,0); (n>=2, k>=0).at n=44A273896
• a(n) = 36*n^2 - 4*n (n>=1).at n=32A304380
• Square array A(n,k) = A388978(A388981(n, k)), read by descending antidiagonals.at n=12A389168