79806domain: NAppears in sequencesA093483(n)-2.at n=8A121404a(n) = (p+2)!/p! where p is the n-th lesser twin prime, A001359(n).at n=18A126251Expansion of -x*log'(-sqrt(12*x+2*sqrt(1-4*x)+2)/4+sqrt(1-4*x)/4+5/4).at n=11A239230G.f.: Sum_{n>=0} (n+1)*(n+2)/2 * (x + x^n)^n.at n=64A325998