Number of nX4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 1 vertically.

A207585

Number of nX4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 1 vertically.

Terms

    a(0) =10a(1) =100a(2) =144a(3) =432a(4) =1014a(5) =2232a(6) =5000a(7) =11220a(8) =25392a(9) =54436a(10) =120350a(11) =264846a(12) =571576a(13) =1256072a(14) =2715892a(15) =5908344a(16) =12871320a(17) =27788516a(18) =60537606a(19) =131084800a(20) =283976596a(21) =617015956a(22) =1334446520a(23) =2896207628a(24) =6276299562a(25) =13590377602a(26) =29485253424

External references