110043

Appears in sequences

• G.f. satisfies: A(x) = 1 + x*A(x)/(1 - x^2*A(x)^2).at n=14A101785
• a(n) = 121*n^2 - 204*n + 86.at n=30A157440
• Irregular table read by rows, T(n, k) is the rank of the k-th Genocchi permutation of {1,...,n}, permutations sorted in lexicographical order. If no Genocchi permutation of {1,...,n} exists, then T(n, 1) = 0 by convention.at n=37A347599