6927424domain: NAppears in sequencesProduct of tribonacci numbers: a(n) = A000073(n+2)*A000213(n).at n=14A200543Number of 6 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=9A208016