Number of arrangements of n+3 numbers in 0..6 with each number being the sum mod 7 of three others.
A183889
Number of arrangements of n+3 numbers in 0..6 with each number being the sum mod 7 of three others.
Terms
- a(0) =1a(1) =1a(2) =32821a(3) =542557a(4) =4978219a(5) =38280865a(6) =277198249a(7) =1964161189a(8) =13808869207a(9) =96809981737a(10) =678032111797
External references
- oeis: A183889