A222976 Smallest member of sociable quadruples with signature: abundant, deficient, deficient, deficient.

4938136, 209524210, 4823923384, 8653956136, 21669628904, 44379752648, 3681459083984, 4553100850815

Offset

1,1

Comments

See comments in A222975.

Links

Table of n, a(n) for n=1..8.

Jan Munch Pedersen, Known Sociable Numbers of order four, Tables of Aliquot Cycles.

Example

The first quadruple of this type is: 4938136, 5753864, 5504056, 5423384, that are respectively abundant, deficient, deficient, deficient.

Crossrefs

Cf. A090615, A222975, A222977, A222978.

Sequence in context: A178136 A143687 A244266 * A157804 A151646 A210318

Adjacent sequences: A222973 A222974 A222975 * A222977 A222978 A222979

Keyword

nonn,more

Author

Michel Marcus, Mar 11 2013

Extensions

a(7)-a(8) from Amiram Eldar, Apr 05 2024

Status

approved