Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

A304896

Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =23a(2) =62a(3) =330a(4) =1249a(5) =5562a(6) =23101a(7) =99064a(8) =418753a(9) =1782180a(10) =7560125a(11) =32121500a(12) =136371438a(13) =579184407a(14) =2459401732a(15) =10444343450a(16) =44352084495a(17) =188345794820a(18) =799822302052

External references