Quintuple factorial numbers: Product_{k=0..n-1} (5*k+1).
A008548
Quintuple factorial numbers: Product_{k=0..n-1} (5*k+1).
Terms
- a(0) =1a(1) =1a(2) =6a(3) =66a(4) =1056a(5) =22176a(6) =576576a(7) =17873856a(8) =643458816a(9) =26381811456
External references
- oeis: A008548