Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.
A299176
Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =85a(2) =205a(3) =649a(4) =2153a(5) =7016a(6) =22819a(7) =73931a(8) =239461a(9) =777197a(10) =2523034a(11) =8188618a(12) =26573796a(13) =86235511a(14) =279858388a(15) =908244102a(16) =2947587609a(17) =9565980797a(18) =31045039874a(19) =100752470139a(20) =326979037002
External references
- oeis: A299176