a(n) = 2^(n-1)*(L(4*n + 1) + 9 - 5*n)/5, where L(n) = A000032(n).
A392837
a(n) = 2^(n-1)*(L(4*n + 1) + 9 - 5*n)/5, where L(n) = A000032(n).
Terms
- a(0) =1a(1) =3a(2) =30a(3) =412a(4) =5696a(5) =78272a(6) =1073536a(7) =14717760a(8) =201757824a(9) =2765746432a(10) =37913437184a(11) =519725176832
External references
- oeis: A392837