A344096 A055932(n) is the a(n)-th positive integer having its distinct prime factors.
1, 1, 2, 1, 3, 2, 4, 3, 4, 1, 5, 5, 6, 7, 2, 6, 8, 3, 9, 10, 4, 7, 11, 5, 12, 6, 13, 1, 14, 7, 8, 8, 15, 9, 16, 10, 17, 2, 18, 11, 12, 19, 9, 13, 20, 14, 3, 21, 15, 16, 22, 17, 4, 23, 18, 19, 24, 10, 5, 20, 25, 21, 6, 26, 22, 23, 27, 7, 24, 28, 25, 8, 29, 26, 9
Offset: 1
Keywords
Examples
a(7) = 4 as 16 = A055932(7) and has distinct prime factors 2 which is the fourth positive integer with those distinct prime factors are 2 (after 2, 4 and 8).