-2344

Appears in sequences

• Expansion of e.g.f.: exp(x)/cosh(tanh(x)).at n=7A009298
• Triangle read by rows: vector recursion: s=5; v(n)={s^(n+1),s^(n+1)-Sum[s^i,{i,2,n}],s^n,...,-1}/s^2.at n=22A152862
• a(n) = 1 + 3*n - 2*n^2.at n=35A168244
• Expansion of f(-x^3)^3 / (f(x)^2 * f(-x^2)) in powers of x where f() is a Ramanujan theta function.at n=11A262151
• Expansion of psi(x^6) / psi(x) in powers of x where psi() is a Ramanujan theta function.at n=33A262160