Number of base 12 circular n-digit numbers with adjacent digits differing by 1 or less.

A124705

Number of base 12 circular n-digit numbers with adjacent digits differing by 1 or less.

Terms

    a(0) =1a(1) =12a(2) =34a(3) =78a(4) =206a(5) =542a(6) =1468a(7) =4016a(8) =11110a(9) =30966a(10) =86864a(11) =244916a(12) =693536a(13) =1971072a(14) =5619466a(15) =16064438a(16) =46032790a(17) =132184022a(18) =380276272a(19) =1095828356a(20) =3162539596a(21) =9139382876a(22) =26444232046a(23) =76600376186a(24) =222113604712a(25) =644654567192

External references