71655domain: NAppears in sequencesMatrix cube of triangle V = A136230, read by rows.at n=16A136237a(n) = F(n+7) - (1/2)*(n^3+2*n^2+13*n+26) where F(i) is a Fibonacci number (A000045).at n=18A220888G.f.: Product_{k>=1} (1 + x^k) / (1 - x^(k*(k+1)/2)).at n=42A280422