Number of base 6 circular n-digit numbers with adjacent digits differing by 1 or less.

A124699

Number of base 6 circular n-digit numbers with adjacent digits differing by 1 or less.

Terms

    a(0) =1a(1) =6a(2) =16a(3) =36a(4) =92a(5) =236a(6) =622a(7) =1658a(8) =4468a(9) =12132a(10) =33146a(11) =90998a(12) =250802a(13) =693426a(14) =1922118a(15) =5339006a(16) =14854932a(17) =41387764a(18) =115438672a(19) =322267784a(20) =900314242a(21) =2516648618a(22) =7038066876a(23) =19690060024a(24) =55102545322a(25) =154241612986

External references