Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A317728
Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =25a(2) =161a(3) =1250a(4) =9541a(5) =72715a(6) =554642a(7) =4229957a(8) =32260015a(9) =246033208a(10) =1876387859a(11) =14310392621a(12) =109139128192a(13) =832356568087
External references
- oeis: A317728