-9375

Appears in sequences

• Expansion of (1+5x-40x^2)/((1-5x)(1+5x)).at n=6A091096
• Matrix log of triangle A111820, which shifts columns left and up under matrix 5th power; these terms are the result of multiplying each element in row n and column k by (n-k)!.at n=33A111823
• Triangle read by rows: coefficients T(n,k) of a binomial decomposition of n as Sum(k=0..n)T(n,k)*binomial(n,k).at n=31A244142