117697domain: NAppears in sequencesNumber of n X 7 0..1 arrays with every element unequal to 0, 1 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=11A299594Number of triples of set partitions of {1,2,...,n} whose join is {{1,2,...,n}}.at n=4A318815