192228domain: NAppears in sequencesNumber of permutations of floor(i*8/7), i=0..n-1, with all sums of 4 adjacent terms unique.at n=8A152345Irregular triangle read by rows: T(n,k) is the sum of the widths of the free polyominoes with n cells and width k, n >= 1, 1 <= k <= ceiling(n/2).at n=47A379637