Number of (n+2)X(1+2) 0..2 arrays with each row and column divisible by 11, read as a base-3 number with top and left being the most significant digits.
A263330
Number of (n+2)X(1+2) 0..2 arrays with each row and column divisible by 11, read as a base-3 number with top and left being the most significant digits.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =9a(4) =23a(5) =51a(6) =133a(7) =399a(8) =1321a(9) =4129a(10) =12457a(11) =38059a(12) =114177a(13) =349017a(14) =1056893a(15) =3188001a(16) =9592717a(17) =28778151a(18) =86390521a(19) =259279771a(20) =778196971a(21) =2334819901a(22) =7004459703a(23) =21010336329a(24) =63026931713a(25) =189077563341a(26) =567218511883
External references
- oeis: A263330