28624

Appears in sequences

• Expansion of e.g.f. log(-1/(-1+x*exp(x)-x)).at n=8A052858
• Interprimes which are of the form s*prime, s=16.at n=23A075291
• Sum of square displacements over all self-avoiding walks on square lattice trapped after n steps.at n=7A078799
• Triangle of coefficients of powers of e^2 in numerators of Sum_{k>=1} {1 / (1 + k^2*Pi^2)^n}.at n=20A085470
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,0) = 0^n and T(n,k) = k * Sum_{r=0..n} binomial(3r+k,r) * binomial(r,n-r)/(3*r+k) for k > 0.at n=61A378323