T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.
A263373
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =2a(6) =5a(7) =7a(8) =7a(9) =5a(10) =10a(11) =29a(12) =82a(13) =29a(14) =10a(15) =19a(16) =112a(17) =865a(18) =865a(19) =112a(20) =19a(21) =37a(22) =367a(23) =9888a(24) =24711a(25) =9888a(26) =367a(27) =37a(28) =73a(29) =1359
External references
- oeis: A263373