A137231 Amicable triples. Sequence gives sigma values: A125490(n) + A125491(n) + A125492(n).

6552, 30240, 70680, 87360, 120960, 120960, 120960, 138240, 157248, 157248, 161280, 196560, 211680, 229320, 241920, 241920, 241920, 241920, 262080, 280800, 290160, 302400, 338688, 362880, 362880, 393120, 393120, 446400, 446400, 483840

Offset

1,1

Comments

Or, apply n -> sigma(n) to any of A125490-A125492.

Are all terms abundant (A005101)? The first 10000 terms are. - S. I. Dimitrov, Sep 19 2025

Links

John Cerkan, Table of n, a(n) for n = 1..10000 [Terms 1 through 1000 were computed by Donovan Johnson]

Crossrefs

Cf. A125490, A125491, A125492.

Sequence in context: A248064 A236898 A252100 * A321824 A043488 A046321

Adjacent sequences: A137228 A137229 A137230 * A137232 A137233 A137234

Keyword

nonn

Author

N. J. A. Sloane, Nov 27 2008, at the suggestion of R. K. Guy

Extensions

a(13)-a(30) from Donovan Johnson, Apr 14 2010

Name edited by John Cerkan, Jun 18 2016

Status

approved