Obverse convolution (2n+1)**A000032; see Comments.
A374868
Obverse convolution (2n+1)**A000032; see Comments.
Terms
- a(0) =3a(1) =10a(2) =112a(3) =1620a(4) =39424a(5) =1404000a(6) =75841920a(7) =6112753920a(8) =742328893440
External references
- oeis: A374868