A097323 One sixth of the unitary sociable numbers.

5, 247, 403, 4030, 5873, 43970, 65955, 78883, 116355, 127270, 368671, 372259

Offset: 1

Author

Ralf Stephan, Aug 09 2004

Keywords

• nonn
• fini
• full

Comments

Unfortunately the next term is not an integer, so this sequence is no longer of interest. - N. J. A. Sloane, 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 [Broken link]
• J. O. M. Pedersen, Tables of Aliquot Cycles [Via Internet Archive Wayback-Machine]
• J. O. M. Pedersen, Tables of Aliquot Cycles [Cached copy, pdf file only]
• E. Weisstein, Unitary Sociable Numbers

Crossrefs

Equals A000173(n)/6.