T(n,k)=Number of horizontal, vertical, diagonal or knight-move neighbor colorings of an nXk array with new integer colors introduced in row major order.

A216694

T(n,k)=Number of horizontal, vertical, diagonal or knight-move neighbor colorings of an nXk array with new integer colors introduced in row major order.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =2a(6) =5a(7) =9a(8) =9a(9) =5a(10) =15a(11) =90a(12) =189a(13) =90a(14) =15a(15) =52a(16) =1451a(17) =11730a(18) =11730a(19) =1451a(20) =52a(21) =203a(22) =33694a(23) =1561834a(24) =6901440a(25) =1561834a(26) =33694a(27) =203a(28) =877a(29) =1047754

External references