33465domain: NAppears in sequencesNumber of ways to partition a 3*n X 2 grid into 6 connected equal-area regions.at n=11A167240a(n) = (n + 1)*(2*n + 1)*(4*n + 9)/3.at n=22A269342Squarefree terms of A276655.at n=40A276756Partial sums of A087207.at n=49A288566