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

A126384

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

Terms

    a(0) =1a(1) =30a(2) =88a(3) =260a(4) =770a(5) =2284a(6) =6782a(7) =20154a(8) =59928a(9) =178284a(10) =530606a(11) =1579726a(12) =4704572a(13) =14014274a(14) =41756092a(15) =124439108a(16) =370913490a(17) =1105756236a(18) =3296937150a(19) =9831523710a(20) =29321421468a(21) =87457888182a(22) =260890934448a(23) =778326317088

External references