|
Search: id:A136607
|
|
|
| A136607 |
|
Odd primitive abundant numbers with only one prime factor 3 and only primes factors == 1 mod 6. |
|
+0
2
|
|
| 6945715839196407, 7516596593102961, 8189724646216659, 26180005855432611, 42208580868962781, 51825725877080883, 55031440879786917, 56085374579306709, 59554573006892691, 61107945437155071
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
The sequence A118466 gives n numbers such that n^2+n+1 are abundant numbers. The abundant numbers n^2+n+1 are of the form k*A136607, k with prime factors only == 1 mod 6
|
|
EXAMPLE
|
6945715839196407=3*7*7*13*13*19*31*37*43*61*67*73
7516596593102961=3*7*7*13*13*19*31*37*43*61*67*79
|
|
CROSSREFS
|
Cf. A118466.
Sequence in context: A064585 A116500 A011529 this_sequence A115227 A104836 A160405
Adjacent sequences: A136604 A136605 A136606 this_sequence A136608 A136609 A136610
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Pierre CAMI (pierrecami(AT)tele2.fr), Jan 13 2008
|
|
|
Search completed in 0.002 seconds
|
