Number of n X 2 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

A281133

Number of n X 2 0..2 arrays with no element equal to more than one 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) =0a(2) =24a(3) =112a(4) =504a(5) =2528a(6) =11712a(7) =52160a(8) =230048a(9) =1000320a(10) =4294016a(11) =18264832a(12) =77098880a(13) =323290624a(14) =1347997696a(15) =5593390080a(16) =23110676992a(17) =95130810368a(18) =390287108096

External references