OFFSET
1,2
COMMENTS
LINKS
Jaroslav Krizek, Table of n, a(n) for n = 1..250
EXAMPLE
a(1)=1 because tau_nc(1)=1; a(2)=2 because tau_nc(2)=2; a(3) cannot be 3 because tau_nc(3)=2, a(3)=4 (4 is the smallest number x>3); if a(3)=4, a(4) must be the smallest number x>a(3) with 3 noncomposite divisors, a(4)=6; a(6) must be number with 4 noncomposite divisors and must keep increase of the sequence, a(6)=30; a(5)=7 because 7>a(4); a(7) must be the smallest number with 5 noncomposite divisors because a(5)=7, a(7)=210; if a(6)=30, a(30) must be the smallest number x>a(7) with 6 noncomposite divisors and must keep increase of the sequence, a(30)=2310; a(8)-a(29) are numbers from interval 211-232; etc...
CROSSREFS
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Aug 05 2016
STATUS
approved