a(1) = 1;l for n>1, a(n) = smallest number such that: 1. the number of divisors is strictly increasing, 2. the differences between the terms are nondecreasing.
A137425
a(1) = 1;l for n>1, a(n) = smallest number such that: 1. the number of divisors is strictly increasing, 2. the differences between the terms are nondecreasing.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =6a(4) =12a(5) =24a(6) =36a(7) =48a(8) =60a(9) =120a(10) =180a(11) =240a(12) =360a(13) =720a(14) =1080a(15) =1440a(16) =2160a(17) =2880a(18) =3600a(19) =4320a(20) =5040a(21) =7560a(22) =10080a(23) =15120a(24) =20160a(25) =25200a(26) =30240a(27) =45360a(28) =60480a(29) =75600
External references
- oeis: A137425