516962

Appears in sequences

• Each term k provides a value of (sum-of-digits of 5^k)/k that is closer to Pi than the previous value.at n=19A119666
• Triangle T(n, k) = 1 + (k!)^2 - 2*k!*(n-k)! + ((n-k)!)^2, read by rows.at n=21A173476
• Triangle T(n, k) = 1 + (k!)^2 - 2*k!*(n-k)! + ((n-k)!)^2, read by rows.at n=27A173476
• Triangle T(n, k) = 1 + (k!)^2 - 2*k!*(n-k)! + ((n-k)!)^2, read by rows.at n=29A173476
• Triangle T(n, k) = 1 + (k!)^2 - 2*k!*(n-k)! + ((n-k)!)^2, read by rows.at n=34A173476