Number of base 27 circular n-digit numbers with adjacent digits differing by 1 or less.

A124726

Number of base 27 circular n-digit numbers with adjacent digits differing by 1 or less.

Terms

    a(0) =1a(1) =27a(2) =79a(3) =183a(4) =491a(5) =1307a(6) =3583a(7) =9911a(8) =27715a(9) =78051a(10) =221159a(11) =629711a(12) =1800371a(13) =5165187a(14) =14862871a(15) =42878543a(16) =123982195a(17) =359207987a(18) =1042568407a(19) =3030781151a(20) =8823230131a(21) =25719643811a(22) =75061264951a(23) =219298798031a(24) =641338650427

External references