L.g.f.: log(G(x)/x) where G(x) is the g.f. of A259270.
A259272
L.g.f.: log(G(x)/x) where G(x) is the g.f. of A259270.
Terms
- a(0) =4a(1) =64a(2) =1264a(3) =28064a(4) =675504a(5) =17304544a(6) =466669536a(7) =13155395904a(8) =385761948592
External references
- oeis: A259272