72403

Appears in sequences

• Coefficient of x^n in (1+x+x^2+x^3+x^4)^n.at n=10A187925
• Triangle T(n,k), read by rows, of numbers T(n,k)=C^(4)(n,k) of combinations with repetitions from n different elements over k for each of them not more than four appearances allowed.at n=65A213743
• a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) < d(k) for k < n, where d is the difference sequence of (cos k + sin k).at n=35A299640