Twice the primorials (first definition), 2*A002110(n).
A088860
Twice the primorials (first definition), 2*A002110(n).
Terms
- a(0) =4a(1) =12a(2) =60a(3) =420a(4) =4620a(5) =60060a(6) =1021020a(7) =19399380a(8) =446185740a(9) =12939386460a(10) =401120980260
External references
- oeis: A088860