Number of nonnegative integer arrays of length n+8 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value n+1.
A211841
Number of nonnegative integer arrays of length n+8 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value n+1.
Terms
- a(0) =16479a(1) =86295a(2) =426022a(3) =1874580a(4) =7251376a(5) =24849643a(6) =76514893a(7) =214762865a(8) =556551660a(9) =1346075734a(10) =3065835607a(11) =6624907961a(12) =13666568938a(13) =27055113275a(14) =51624909857a(15) =95304639221a(16) =170767632249a(17) =297806806741a(18) =506691598400
External references
- oeis: A211841