Number of n X 3 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

A299123

Number of n X 3 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =4a(2) =9a(3) =23a(4) =31a(5) =184a(6) =427a(7) =1115a(8) =4128a(9) =11024a(10) =32827a(11) =104959a(12) =302093a(13) =917104a(14) =2804565a(15) =8324555a(16) =25231517a(17) =76267810a(18) =228857830a(19) =691699768a(20) =2085676297a(21) =6280152762a(22) =18952185100a(23) =57128981249a(24) =172189537544a(25) =519305913429

External references