566412

Appears in sequences

• Partial sums of A005557.at n=20A115130
• Number of length n+3 0..2 arrays with at most one downstep in every n consecutive neighbor pairs.at n=30A255110
• a(n) = p*(p - 1)*(501*p^3 - 414*p^2 + 111*p - 54)/120, where p = prime(n).at n=4A273223