a(1)=1, a(2)=2; thereafter, a(n) is the smallest number m not yet in the sequence such that every prime that divides a(n-1) also divides m.
A060735
a(1)=1, a(2)=2; thereafter, a(n) is the smallest number m not yet in the sequence such that every prime that divides a(n-1) also divides m.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =6a(4) =12a(5) =18a(6) =24a(7) =30a(8) =60a(9) =90a(10) =120a(11) =150a(12) =180a(13) =210a(14) =420a(15) =630a(16) =840a(17) =1050a(18) =1260a(19) =1470a(20) =1680a(21) =1890a(22) =2100a(23) =2310a(24) =4620a(25) =6930a(26) =9240a(27) =11550a(28) =13860a(29) =16170
External references
- oeis: A060735