Number of (n+1)X(2+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.
A263367
Number of (n+1)X(2+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) =2a(2) =7a(3) =29a(4) =112a(5) =367a(6) =1359a(7) =5370a(8) =21447a(9) =86013a(10) =343936a(11) =1371301a(12) =5479081a(13) =21913562a(14) =87653287a(15) =350634149a(16) =1402534912a(17) =5609859607a(18) =22439049159a(19) =89756056050a(20) =359024196327
External references
- oeis: A263367