59109
domain: N
Appears in sequences
- a(n) = binomial(n,4) - binomial(floor(n/2),4) - binomial(ceiling(n/2),4).at n=37A111385
- Triangle read by rows: a(1,1) = 1. a(m,m) = sum of all terms in rows 1 through m-1. a(m,n) = a(m-1,n) + (sum of all terms in rows 1 through m-1), for n < m.at n=31A159927
- a(n) = 6n + 3^n.at n=9A173391
- a(n) = n*(n+1)*(n+2)*(n+3)*(n^2+3*n+26)/720.at n=16A257200
- Expansion of Product_{k>=0} (1-x^(3*k+1))^(3*k+1).at n=43A285050
- a(n) = (n^2 - 3*n + 6)*binomial(n+2,3)/4.at n=17A301973