83451469774domain: NAppears in sequencesNumber of (n+2)X(1+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards.at n=5A233595Number of (6+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards.at n=0A233608