322262domain: NAppears in sequencesNumber of 0..n arrays x(0..4) of 5 elements with zero 4th difference.at n=36A200156Index of 2^n in A109812.at n=20A305370Numbers k such that A109812(k) AND A109812(k+2) = 0 (where AND denotes the bitwise AND operator).at n=43A352773