Number of nX6 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A298928
Number of nX6 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =13a(2) =7a(3) =72a(4) =255a(5) =955a(6) =3569a(7) =15031a(8) =61046a(9) =253624a(10) =1067751a(11) =4492809a(12) =18851449a(13) =79305038a(14) =333393642a(15) =1401954916a(16) =5897152044a(17) =24806594547a(18) =104353275618a(19) =439007735235
External references
- oeis: A298928