|
| |
|
|
A007626
|
|
Sum of divisors of superabundant numbers (A004394).
|
|
4
| |
|
|
1, 3, 7, 12, 28, 60, 91, 124, 168, 360, 546, 744, 1170, 2418, 2880, 4368, 5952, 9360, 19344, 39312, 59520, 99944, 112320, 232128, 471744, 714240, 1199328, 1451520, 2437344, 2926080, 3249792, 6604416, 9999360
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| Local maxima of sigma(n), the sum of divisors function A000203.
Same as A063072 for the first 19 terms. - T. D. Noe, Jul 01 2008
|
|
|
LINKS
| T. D. Noe, Table of n, a(n) for n=1..500
Walter Nissen, Home Page (listed in lieu of email address)
|
|
|
CROSSREFS
| Cf. A002192, A000203, A051444, A004394.
See A034885 and A002093 for another version.
Sequence in context: A196917 A182941 A063072 * A193297 A047068 A167490
Adjacent sequences: A007623 A007624 A007625 * A007627 A007628 A007629
|
|
|
KEYWORD
| nonn,easy,nice
|
|
|
AUTHOR
| Walter Nissen
|
| |
|
|