|
Search: id:A058197
|
|
|
| A058197 |
|
Where d(m) (number of divisors, A000005) rises by at least n. |
|
+0
3
|
|
| 1, 5, 11, 11, 23, 23, 47, 47, 59, 59, 119, 119, 167, 167, 179, 179, 239, 239, 359, 359, 359, 359, 719, 719, 719, 719, 719, 719, 839, 839, 1259, 1259, 1259, 1259, 1679, 1679, 2519, 2519, 2519, 2519, 2519, 2519, 2519, 2519, 3359, 3359, 5039, 5039, 5039, 5039
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
REFERENCES
|
D. S. Mitrinovic et al., Handbook of Number Theory, Kluwer, 1996, Section II.1.3.a.
|
|
EXAMPLE
|
d(11)=2, d(12)=6 gives first jump of >= 3, so a(3)=a(4)=11.
|
|
CROSSREFS
|
Equals A058198(n)-1.
Sequence in context: A061768 A060846 A113002 this_sequence A126243 A095805 A034596
Adjacent sequences: A058194 A058195 A058196 this_sequence A058198 A058199 A058200
|
|
KEYWORD
|
nonn,nice,easy
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Nov 28 2000
|
|
EXTENSIONS
|
More terms from James A. Sellers (sellersj(AT)math.psu.edu), Nov 29 2000
|
|
|
Search completed in 0.002 seconds
|
