Number of base 30 circular n-digit numbers with adjacent digits differing by 1 or less.

A124799

Number of base 30 circular n-digit numbers with adjacent digits differing by 1 or less.

Terms

    a(0) =1a(1) =30a(2) =88a(3) =204a(4) =548a(5) =1460a(6) =4006a(7) =11090a(8) =31036a(9) =87468a(10) =248018a(11) =706670a(12) =2021738a(13) =5804010a(14) =16711552a(15) =48241364a(16) =139572076a(17) =404612780a(18) =1175026834a(19) =3417771710a(20) =9955368238a(21) =29035695998a(22) =84784671532a(23) =247838482400a(24) =725183659570

External references