1650156domain: NAppears in sequencesNumber of nX4 0..1 arrays with no element equal to more than three of its king-move neighbors and with new values introduced in order 0 sequentially upwards.at n=10A281340Expansion of (1/x) * Series_Reversion( x * (1 - x^2 * (1 + x)^3) ).at n=14A389295