75472domain: NAppears in sequencesBond series for first parallel moment of 4.8 (bathroom tile) lattice.at n=25A120554Row sums of A285118: a(n) = Sum_{k=1..(n-1)} (C(n-1,k-1) bitwise-and C(n-1,k)), a(0) = a(1) = 0.at n=18A285115Expansion of (1/x) * Series_Reversion( x / ((1+x)^2 * (1+x^2*(1+x)^2)) ).at n=8A387497