-9136

Appears in sequences

• 2n-th derivative of sech(x)^cosh(x) at x=0.at n=5A215677
• G.f.: 2*q * Product_{n>=1} (1 + q^(2*n))/((1 + q^n)*(1 + q^(2*n-1))*(1 + q^(4*n))) in powers of q.at n=27A293132