a(n) = Sum_{k=0..n-2} A205497(n, k) * (1 - k mod 2) if n >= 2, a(0) = a(1) = 1.
A373752
a(n) = Sum_{k=0..n-2} A205497(n, k) * (1 - k mod 2) if n >= 2, a(0) = a(1) = 1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =8a(6) =33a(7) =136a(8) =670a(9) =3968a(10) =25593a(11) =176896a(12) =1344154a(13) =11184128a(14) =99897361a(15) =951878656a(16) =9687175862a(17) =104932671488
External references
- oeis: A373752