Write the natural numbers in groups: 1; 2,3; 4,5,6; 7,8,9,10; ... and multiply the members of each group.
A057003
Write the natural numbers in groups: 1; 2,3; 4,5,6; 7,8,9,10; ... and multiply the members of each group.
Terms
- a(0) =1a(1) =6a(2) =120a(3) =5040a(4) =360360a(5) =39070080a(6) =5967561600
External references
- oeis: A057003