T(n,k)=Number of nXk 0..6 arrays with every element value z a city block distance of exactly z from another element value z.

A209054

T(n,k)=Number of nXk 0..6 arrays with every element value z a city block distance of exactly z from another element value z.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =5a(4) =13a(5) =5a(6) =12a(7) =115a(8) =115a(9) =12a(10) =33a(11) =1468a(12) =5822a(13) =1468a(14) =33a(15) =99a(16) =22738a(17) =459808a(18) =459808a(19) =22738a(20) =99a(21) =319a(22) =415695a(23) =49062184a(24) =245980249a(25) =49062184a(26) =415695a(27) =319a(28) =980a(29) =7893620

External references