129348domain: NAppears in sequencesTriangle, read by rows, where g.f.: A(x,y) = exp( Sum_{n>=1} (3^n + y)^n * x^n/n ) is a power series in x and y with integer coefficients.at n=18A155812Numbers k such that A372692(k) = A372692(k+1) > 1.at n=23A372693