Column 1 of triangle A136470 (scaled): a(n) = A136470(n+1,1)/2^n.
A136471
Column 1 of triangle A136470 (scaled): a(n) = A136470(n+1,1)/2^n.
Terms
- a(0) =1a(1) =4a(2) =32a(3) =756a(4) =57008a(5) =14053392a(6) =11549010240
External references
- oeis: A136471