Obverse convolution (2^n)**(n!); see Comments.
A374874
Obverse convolution (2^n)**(n!); see Comments.
Terms
- a(0) =2a(1) =6a(2) =45a(3) =1260a(4) =183600a(5) =176490600
External references
- oeis: A374874
A374874
Obverse convolution (2^n)**(n!); see Comments.