153721domain: NAppears in sequencesNumber of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010001.at n=10A260170Number of connected subsets of faces (or polyforms) of the n-th Johnson solid, up to symmetries of that solid.at n=19A384381