A052470 Conjectured orders of sociable numbers A003416.

5, 28, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 9, 8, 4, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4

Offset

1,1

Comments

This is only conjectural, since we don't know that A003416 is complete (cf. A122726). - N. J. A. Sloane, Sep 17 2021

Links

Table of n, a(n) for n=1..105.

Shyam Sunder Gupta, Perfect, Multiply Perfect, and Sociable Numbers, Exploring the Beauty of Fascinating Numbers, Springer (2025) Ch. 6, 185-207.

Eric Weisstein's World of Mathematics, Sociable Numbers.

Crossrefs

Cf. A003416, A122726.

Sequence in context: A216341 A063860 A000878 * A351749 A016087 A347251

Adjacent sequences: A052467 A052468 A052469 * A052471 A052472 A052473

Keyword

nonn,changed

Author

Eric W. Weisstein

Extensions

More terms from Eric W. Weisstein, May 22 2006

Edited (including adding "conjectural" to definition) by N. J. A. Sloane, Sep 17 2021

Status

approved