Number of base 20 circular n-digit numbers with adjacent digits differing by 9 or less.

A125477

Number of base 20 circular n-digit numbers with adjacent digits differing by 9 or less.

Terms

    a(0) =1a(1) =20a(2) =290a(3) =3710a(4) =53630a(5) =790670a(6) =11804384a(7) =177140396a(8) =2664526934a(9) =40121436206a(10) =604415162550

External references