-6704

Appears in sequences

• Expansion of e.g.f. arcsin(exp(x) - sec(x)).at n=8A013329
• Regular triangle, T(n, k) = f(n, k) - f(n, 0) + 1, where f(n, k) = Sum_{j=0..k} StirlingS1(n, n-j)*binomial(n,j) + Sum_{j=0..n-k} StirlingS1(n, n-j)*binomial(n, j), read by rows.at n=24A176155
• G.f. satisfies: A(x) = 1 + x/(A(x) + x*A'(x)).at n=6A177384