81719000

Appears in sequences

• a(n) = (n + 1)*binomial(n + 1, 10).at n=15A027770
• a(n) = (n+1)*binomial(n+1, 15).at n=10A027775
• Expansion of (1 + 4*x)/sqrt(1 - 4*x).at n=14A349835