295673994

Appears in sequences

• Riordan numbers: a(n) = (n-1)*(2*a(n-1) + 3*a(n-2))/(n+1).at n=23A005043
• Bisection of A005043.at n=11A099252
• First column of A174295.at n=25A174297
• a(n) = [x^n] (1 - 2*x - sqrt((1 - 3*x)/(1 + x)))/(2*x^3).at n=21A342912