T(n,k)=Number of nXk 0..1 arrays with no element equal to more than four of its king-move neighbors and with new values introduced in order 0 sequentially upwards.

A281837

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than four of its king-move neighbors and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =8a(5) =4a(6) =8a(7) =31a(8) =31a(9) =8a(10) =16a(11) =121a(12) =163a(13) =121a(14) =16a(15) =32a(16) =472a(17) =926a(18) =926a(19) =472a(20) =32a(21) =64a(22) =1841a(23) =5315a(24) =8240a(25) =5315a(26) =1841a(27) =64a(28) =128a(29) =7181

External references