Number of base 11 circular n-digit numbers with adjacent digits differing by 1 or less.

A124704

Number of base 11 circular n-digit numbers with adjacent digits differing by 1 or less.

Terms

    a(0) =1a(1) =11a(2) =31a(3) =71a(4) =187a(5) =491a(6) =1327a(7) =3623a(8) =10003a(9) =27827a(10) =77911a(11) =219263a(12) =619747a(13) =1758131a(14) =5003239a(15) =14276831a(16) =40836163a(17) =117049091a(18) =336123463a(19) =966831503a(20) =2785160227a(21) =8034032147a(22) =23203096519a(23) =67087148063a(24) =194165268355a(25) =562477731491

External references