|
| |
|
|
A097323
|
|
One sixth of the unitary sociable numbers.
|
|
1
| |
|
|
5, 247, 403, 4030, 5873, 43970, 65955, 78883, 116355, 127270, 368671, 372259
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Unfortunately the next term is not an integer, so this sequence is no longer of interest. - N. J. A. Sloane (njas(AT)research.att.com), Nov 07 2006
Next term would be A000173(13)/6=172459210/6 but this is not an integer. Others unitary-sociable numbers which are not divisible by 6 are: 209524210 = 2.5.7.19.263.599, 1799281330 = 2.5.7.11.139.16811, 7009279550 = 2.5^2.7.13.19.89.911, 111375706442 = 2.7.11.13.59.727.1297,... - Herman Jamke (hermanjamke(AT)fastmail.fm), Nov 01 2006
|
|
|
LINKS
| D. Moews, Perfect, amicable and sociable numbers
J. O. M. Pedersen, Tables of Aliquot Cycles
E. Weisstein, Unitary Sociable Numbers
|
|
|
CROSSREFS
| Equals A000173(n)/6.
Sequence in context: A142732 A085115 A144999 * A166943 A125533 A068727
Adjacent sequences: A097320 A097321 A097322 * A097324 A097325 A097326
|
|
|
KEYWORD
| nonn,fini,full
|
|
|
AUTHOR
| Ralf Stephan, Aug 09 2004
|
| |
|
|
