Number of (n+1) X (1+1) 0..4 arrays with each row and column divisible by 7, read as a base-5 number with top and left being the most significant digits.
A263551
Number of (n+1) X (1+1) 0..4 arrays with each row and column divisible by 7, read as a base-5 number with top and left being the most significant digits.
Terms
- a(0) =4a(1) =10a(2) =40a(3) =148a(4) =592a(5) =2344a(6) =9376a(7) =37456a(8) =149824a(9) =599200a(10) =2396800a(11) =9587008a(12) =38348032a(13) =153391744a(14) =613566976a(15) =2454267136a(16) =9817068544a(17) =39268272640a(18) =157073090560a(19) =628292359168
External references
- oeis: A263551