56609280

Appears in sequences

• Number T(n,m) of n X m matrices over {0,1,2} with all row and column sums equal to 1 or 2, m=0,..,2*n.at n=43A062154
• Sum of unitary divisors of central binomial coefficient C(n, floor(n/2)).at n=27A064140
• Diagonal of A081957.at n=9A081958
• Orders of the finite groups Aut(GL_2(K)) when K is a finite field with q = A246655(n) elements.at n=26A353247