295867

Appears in sequences

• a(n) = (3n - 9/2 - 1/n + 6/(n+1))*binomial(2n-2,n-1).at n=7A344717
• Expansion of (1/x) * Series_Reversion( x * (1-x) * (1-x-x^3)^2 ).at n=7A368966