Numbers k that set a record for the number of distinct prime signatures represented among their unitary divisors.

A182862

Numbers k that set a record for the number of distinct prime signatures represented among their unitary divisors.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =12a(4) =60a(5) =360a(6) =1260a(7) =2520a(8) =27720a(9) =138600a(10) =360360a(11) =831600a(12) =10810800a(13) =75675600a(14) =183783600a(15) =1286485200a(16) =24443218800a(17) =38594556000a(18) =424540116000a(19) =733296564000

External references