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

A283666

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

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =2a(13) =0a(14) =0a(15) =0a(16) =4a(17) =403a(18) =403a(19) =4a(20) =0a(21) =0a(22) =40a(23) =5432a(24) =11886a(25) =5432a(26) =40a(27) =0a(28) =0a(29) =264

External references