483729408domain: NAppears in sequencesNumber of fault-free tilings of a 4 X 3n rectangle with right trominoes.at n=12A084477Expansion of g.f. (1+2*x)/(1-6*x).at n=11A270576Number of ways to tile a double-hexagon strip of n hexagons, using single and double hexagons.at n=34A354541Numbers with 11 odd divisors.at n=20A368950