27671

Appears in sequences

• Row sums of the triangle A097883.at n=37A098404
• Number of nX6 0..1 arrays with every element equal to 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.at n=7A298098
• G.f.: Sum_{n>=0} binomial(n^2, n) * x^n / (1 + x)^(n^2).at n=5A298695
• Triangle read by rows: T(n,k) = number of j-covers of [n] with j<=k, k=1..2^n-1.at n=29A369950