A214134 Smallest member of sociable quadruples that follow W. Borho's construction rule.

28158165, 2387776550, 88585861815, 111375706442, 1092162882824, 39436853599990, 65747483238255, 92180272746590, 96642590616495, 209709847893070, 223599822374385, 430324482433184, 535975018716375, 1107681705347175, 1210691484867410, 1356505589071269

Offset

1,1

Links

Table of n, a(n) for n = 1..16

Blankenagel, Karsten; Borho, Walter; vom Stein, Axel. New amicable four-cycles. Math. Comp. 72 (2003), no. 244, 2071--2076 (electronic). MR1986823 (2004c:11006)

Michel Marcus, Construction rule

D. Moews, A list of currently known aliquot cycles of length greater than 2.

Crossrefs

Cf. A090615.

Sequence in context: A204805 A216903 A114681 * A205933 A101639 A213914

Adjacent sequences: A214131 A214132 A214133 * A214135 A214136 A214137

Keyword

nonn

Author

Michel Marcus, Jul 05 2012

Extensions

b-file removed and construction rules updated by Michel Marcus, Dec 04 2014

Status

approved