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

A126414

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

Terms

    a(0) =1a(1) =27a(2) =129a(3) =625a(4) =3043a(5) =14861a(6) =72723a(7) =356399a(8) =1748605a(9) =8586905a(10) =42198735a(11) =207504135a(12) =1020887305a(13) =5024819575a(14) =24741667433a(15) =121865892063a(16) =600430229661

External references