T(n,k)=Number of diagonal and antidiagonal neighbor colorings of the even squares of an nXk array with new integer colors introduced in row major order.

A215904

T(n,k)=Number of diagonal and antidiagonal neighbor colorings of the even squares of an nXk array with new integer colors introduced in row major order.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =1a(5) =2a(6) =2a(7) =2a(8) =2a(9) =2a(10) =5a(11) =5a(12) =15a(13) =5a(14) =5a(15) =5a(16) =15a(17) =42a(18) =42a(19) =15a(20) =5a(21) =15a(22) =52a(23) =726a(24) =602a(25) =726a(26) =52a(27) =15a(28) =15a(29) =203

External references