Number of base 31 n-digit numbers with adjacent digits differing by one or less.

A126385

Number of base 31 n-digit numbers with adjacent digits differing by one or less.

Terms

    a(0) =1a(1) =31a(2) =91a(3) =269a(4) =797a(5) =2365a(6) =7025a(7) =20883a(8) =62115a(9) =184845a(10) =550289a(11) =1638775a(12) =4881719a(13) =14545715a(14) =43350415a(15) =129222077a(16) =385262397a(17) =1148802957a(18) =3426077313a(19) =10218944199a(20) =30483682935a(21) =90944672583a(22) =271351287651a(23) =809707376697

External references