Number of base 28 n-digit numbers with adjacent digits differing by one or less.

A126382

Number of base 28 n-digit numbers with adjacent digits differing by one or less.

Terms

    a(0) =1a(1) =28a(2) =82a(3) =242a(4) =716a(5) =2122a(6) =6296a(7) =18696a(8) =55554a(9) =165162a(10) =491240a(11) =1461628a(12) =4350278a(13) =12951392a(14) =38567446a(15) =114873170a(16) =342215676a(17) =1019662794a(18) =3038656824a(19) =9056682732a(20) =26996898534a(21) =80484319380a(22) =239970228042a(23) =715564197870

External references