Number of base 13 circular n-digit numbers with adjacent digits differing by 1 or less.

A124706

Number of base 13 circular n-digit numbers with adjacent digits differing by 1 or less.

Terms

    a(0) =1a(1) =13a(2) =37a(3) =85a(4) =225a(5) =593a(6) =1609a(7) =4409a(8) =12217a(9) =34105a(10) =95817a(11) =270569a(12) =767325a(13) =2184013a(14) =6235693a(15) =17852045a(16) =51229417a(17) =147318953a(18) =424429081a(19) =1224825209a(20) =3539918965a(21) =10244733605a(22) =29685367573a(23) =86113604309a(24) =250061941093a(25) =726831403493

External references