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A344096
A055932(n) is the a(n)-th positive integer having its distinct prime factors.
0
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
1,3
EXAMPLE
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).
CROSSREFS
Sequence in context: A124876 A188901 A171618 * A253138 A283994 A026238
KEYWORD
nonn
AUTHOR
David A. Corneth, May 09 2021
STATUS
approved