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A175719
a(1) = 1, for n >= 2, a(n) = the smallest number m with (a(n-1) + 3) divisors.
2
1, 6, 36, 36864
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..4.
FORMULA
A000005
(a(n)) = a(n-1) + 3 for n >= 2.
EXAMPLE
a(3) = 36 = the smallest number with 6 + 3 = 9 divisors.
CROSSREFS
Cf.
A014221
,
A173603
,
A173605
.
Sequence in context:
A202781
A067213
A173604
*
A277726
A346356
A003351
Adjacent sequences:
A175716
A175717
A175718
*
A175720
A175721
A175722
KEYWORD
nonn
AUTHOR
Jaroslav Krizek
, Aug 15 2010
STATUS
approved
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Last modified May 21 11:30 EDT 2024. Contains 372736 sequences. (Running on oeis4.)