138875

Appears in sequences

• Let f(n, m) = binomial(n - m/2 + 1, n - m + 1) - binomial(n - m/2, n - m + 1) and let s(n) = Sum_{k=0..n} f(n, k); then a(n) = numerator of s(n).at n=8A072287
• Numbers which can be expressed as the product of numbers made of only fives.at n=24A161143