75708

Appears in sequences

• Expansion of 1/(1-2*x^2-3*x^3).at n=19A002447
• Square array read by antidiagonals upwards: the n-th row o.g.f. is exp( Sum_{i >= 1} d(n,i+1)*x^i/i ) for n >= 1, where d(n,k) is Shanks's array of generalized Euler and class numbers.at n=20A262144
• Expansion of o.g.f. exp( Sum_{n >= 1} A000182(n+1)*x^n/n ), where A000182 is the sequence of tangent numbers.at n=5A262145