Number of arrangements of n+2 numbers in 0..8 with each number being the sum mod 9 of two others.
A183883
Number of arrangements of n+2 numbers in 0..8 with each number being the sum mod 9 of two others.
Terms
- a(0) =1a(1) =31a(2) =1761a(3) =75451a(4) =1598395a(5) =23327655a(6) =275846173a(7) =2895194179a(8) =28388585391a(9) =267809160367
External references
- oeis: A183883