Number of walks of length 2n+6 in the path graph P_7 from one end to the other.
A005022
Number of walks of length 2n+6 in the path graph P_7 from one end to the other.
Terms
- a(0) =6a(1) =26a(2) =100a(3) =364a(4) =1288a(5) =4488a(6) =15504a(7) =53296a(8) =182688a(9) =625184a(10) =2137408a(11) =7303360a(12) =24946816a(13) =85196928a(14) =290926848a(15) =993379072a(16) =3391793664a(17) =11580678656a(18) =39539651584a(19) =134998297600a(20) =460915984384
External references
- oeis: A005022