669920

Appears in sequences

• Expansion of (1 -2*x +4*x^2 -22*x^3 +6*x^4 +268*x^5 -854*x^6 +3596*x^7 -3100*x^8)/((1 -2*x)/(1 -2*x -4*x^2)).at n=11A115109
• a(n) = (p+1)*(p+2)*(p+3)/6 where p is the n-th prime.at n=36A271512
• a(n) = (5*n + 3)*(5*n + 4)*(5*n + 5)/6.at n=31A300522