Number of nX3 0..1 arrays with no element equal to more than three of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A281029
Number of nX3 0..1 arrays with no element equal to more than three of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =2a(2) =96a(3) =532a(4) =2321a(5) =8886a(6) =31700a(7) =108034a(8) =357542a(9) =1158596a(10) =3694697a(11) =11633400a(12) =36255175a(13) =112035020a(14) =343760934a(15) =1048431286a(16) =3181035325a(17) =9608044744a(18) =28905403029a(19) =86656025654a(20) =258976361436a(21) =771797361724
External references
- oeis: A281029