Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
A304954
Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =16a(2) =42a(3) =118a(4) =371a(5) =1203a(6) =3917a(7) =12919a(8) =42060a(9) =137964a(10) =453179a(11) =1485554a(12) =4873627a(13) =15999482a(14) =52491249a(15) =172244821a(16) =565295892a(17) =1855010713a(18) =6087300807a(19) =19976720519a(20) =65555588200a(21) =215127264249a(22) =705970664448
External references
- oeis: A304954