525952
domain: N
Appears in sequences
- Number of ways of writing n as a sum of 16 squares.at n=6A000152
- Theta series of D_16 lattice.at n=3A022047
- Triangle read by rows: T(n,k) = (-1)^(n-k) * r16(n-k) * 2^(3*b(k)) * sigma_3(O(k)), for k=1 to n, for n>=1 (see comments for terms used).at n=21A193354
- E.g.f. tan(x/(1-x)).at n=8A219613
- Expansion of theta_4(q)^16 in powers of q = exp(Pi i t).at n=6A319307
- a(n) = (4/45)*n*(n - 2)*(n - 1)*(n^3 - 12*n^2 + 47*n - 15).at n=16A319577