127871domain: NAppears in sequencesa(n) = S(n) + c(n) where S(n) = [ (3/2)^n ] and c is the complement of S.at n=28A022808Number of length n+3 0..2 arrays with at most one downstep in every 3 consecutive neighbor pairs.at n=8A255102List of connected graphs that are squares, encoded as in A076184.at n=33A382194