4124961domain: NAppears in sequencesO.g.f.: 1/(1-x) * Sum_{n>=0} 1/(1-(n+1)*x)^n * x^n/n! * exp(-x/(1-(n+1)*x)).at n=12A185040Number of n X 2 binary arrays without the pattern 0 0 1 1 diagonally, vertically or horizontally.at n=11A189154