Number of (s(0), s(1), ..., s(2n+1)) such that 0 < s(i) < 8 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n+1, s(0) = 1, s(2n+1) = 6.

A094811

Number of (s(0), s(1), ..., s(2n+1)) such that 0 < s(i) < 8 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n+1, s(0) = 1, s(2n+1) = 6.

Terms

    a(0) =1a(1) =6a(2) =26a(3) =100a(4) =364a(5) =1288a(6) =4488a(7) =15504a(8) =53296a(9) =182688a(10) =625184a(11) =2137408a(12) =7303360a(13) =24946816a(14) =85196928a(15) =290926848a(16) =993379072a(17) =3391793664a(18) =11580678656a(19) =39539651584a(20) =134998297600a(21) =460915984384

External references