A135624 Perfect numbers written backwards.

6, 82, 694, 8218, 63305533, 6509689858, 823196834731, 8212599318003485032, 6712483595162964564471389651995548562, 612961845123799031836303480873397492701632806249165191

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Omar E. Pol, Determinacion geometrica de los numeros primos y perfectos.

Example

a(3)=694 because the 3rd perfect number is 496.

Crossrefs

Cf. A000396, A004087.

Sequence in context: A279203 A320993 A032491 * A222197 A089397 A089701

Adjacent sequences: A135621 A135622 A135623 * A135625 A135626 A135627

Keyword

base,easy,nonn

Author

Omar E. Pol, Feb 17 2008

Status

approved