327656

Appears in sequences

• Theta series of D_28 lattice.at n=2A022059
• Theta series of D*_28 lattice.at n=4A022081
• Expansion of theta_4(q)^28 in powers of q = exp(Pi i t).at n=4A319310
• a(n) = (2/3)*n*(n^3 - 6*n^2 + 11*n - 3).at n=28A319575
• a(n) is equal to the n-th order Taylor polynomial (centered at 0) of c(x)^n evaluated at x = 1, where c(x) = (1 - sqrt(1 - 4*x))/(2*x) is the o.g.f. of the Catalan numbers A000108.at n=8A333093