774180

Appears in sequences

• Theta series of 18-dimensional lattice associated with Sp_4(4), with det 1024 and minimal norm 4.at n=4A005944
• Theta series of 18-dimensional lattice associated with Sp_4(4), with det 256 and minimal norm 3.at n=8A005950
• a(n) = n*(n+1)*(2*n+1)*(3*n+1)*(4*n+1)/6.at n=11A011197
• Denominators of continued fraction convergents to sqrt(112).at n=17A041203
• Triangle defined by g.f. A(x,y) = exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n*k, k^2) * y^k ), as read by rows.at n=34A228904
• A diagonal of triangle A228904.at n=6A228906