525624

Appears in sequences

• a(n) = 2401*n^2 - 980*n + 99.at n=14A157375
• L.g.f.: Sum_{n>=1} a(n)*x^n/n = Sum_{n>=1} (1 + C(2n-1,n-1)*x)^n * x^n/n.at n=6A159321