A222978 Smallest member of sociable quadruples with signature: abundant, abundant, abundant, deficient.

330003580, 3705771825, 5373457070

Offset: 1

Author

Michel Marcus, Mar 11 2013

Keywords

• nonn
• bref
• more

Comments

See comments in A222975.

a(4) > 10^14, if it exists. - Amiram Eldar, Apr 05 2024

Examples

			The first quadruple of this type is: 330003580, 363003980, 399304420, 440004764 that are respectively abundant, abundant, abundant, deficient.
		

Links

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

Crossrefs

Cf. A090615, A222975, A222976, A222977.