Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A316637
Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =45a(2) =122a(3) =524a(4) =2342a(5) =9773a(6) =44095a(7) =195387a(8) =864584a(9) =3862519a(10) =17173279a(11) =76452466a(12) =340685629a(13) =1516751816a(14) =6755834593a(15) =30091122083a(16) =134013352168a(17) =596898766434
External references
- oeis: A316637