711477

Appears in sequences

• Numerators of continued fraction convergents to sqrt(855).at n=5A042650
• Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + (n^2 +n -1)*T(n-2, k-1), read by rows.at n=40A154233
• Number of (n+1) X 7 0..1 matrices with each 2 X 2 subblock idempotent.at n=20A224548