Number of nX3 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A316450

Number of nX3 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =11a(2) =9a(3) =23a(4) =58a(5) =126a(6) =272a(7) =672a(8) =1553a(9) =3555a(10) =8624a(11) =20434a(12) =48097a(13) =116009a(14) =277803a(15) =663233a(16) =1596067a(17) =3838951a(18) =9220294a(19) =22194498a(20) =53457842a(21) =128698832a(22) =310008613a(23) =747059207a(24) =1800118460a(25) =4338138328a(26) =10456485093a(27) =25204290195a(28) =60754661477

External references