374920

Appears in sequences

• A symmetrical triangular sequence:t(n,m)=(StirlingS1[n, m] + StirlingS1[n, n - m])*Binomial[n, m] - (StirlingS1[n, 0] + StirlingS1[n, n - 0])* Binomial[n, 0] + 1.at n=38A174834
• A symmetrical triangular sequence:t(n,m)=(StirlingS1[n, m] + StirlingS1[n, n - m])*Binomial[n, m] - (StirlingS1[n, 0] + StirlingS1[n, n - 0])* Binomial[n, 0] + 1.at n=42A174834
• G.f.: exp( Sum_{n>=1} (x^n/n)/sqrt(1 - 4*x^n) ).at n=11A194353