T(n,k)=Number of (n+1)X(k+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30 (30 maximizes T(1,1)), and no two adjacent values equal.
A233917
T(n,k)=Number of (n+1)X(k+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30 (30 maximizes T(1,1)), and no two adjacent values equal.
Terms
- a(0) =160a(1) =640a(2) =640a(3) =2440a(4) =3944a(5) =2440a(6) =9612a(7) =22632a(8) =22632a(9) =9612a(10) =36976a(11) =138132a(12) =194208a(13) =138132a(14) =36976a(15) =145004a(16) =807964a(17) =1813476a(18) =1813476a(19) =807964a(20) =145004a(21) =559736a(22) =4908404a(23) =15981048a(24) =26954304a(25) =15981048a(26) =4908404a(27) =559736a(28) =2189924a(29) =28936484
External references
- oeis: A233917