Number of arrangements of n+2 numbers in 0..6 with each number being the sum mod 7 of two others.
A183881
Number of arrangements of n+2 numbers in 0..6 with each number being the sum mod 7 of two others.
Terms
- a(0) =1a(1) =1a(2) =1231a(3) =32521a(4) =424537a(5) =4079713a(6) =33702403a(7) =257404033a(8) =1885866973a(9) =13515603289a(10) =95750388631a(11) =674299155193
External references
- oeis: A183881