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A094467 Primes of the form -1+multiply perfect numbers. 2
5, 1379454719, 14182439039, 43861478399, 51001180159, 153003540479, 403031236607, 518666803199, 275502900594021407, 69357059049509038079, 1161492388333469337599, 1245087725796543283199, 34384125938411324962897919, 115131961034430181728489308159 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The Prime Puzzles link defines left-perfect-primes to be -1+perfect number, and show that 5 is the only one.

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..51

Prime Puzzles, Puzzle 203.

CROSSREFS

Cf. A007691, A061644, A094468.

Sequence in context: A115738 A115763 A052000 * A242828 A091511 A177164

Adjacent sequences:  A094464 A094465 A094466 * A094468 A094469 A094470

KEYWORD

nonn

AUTHOR

Labos Elemer, May 12 2004

EXTENSIONS

a(6)-a(14) from Charles R Greathouse IV, Feb 08 2012

STATUS

approved

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Last modified April 19 16:18 EDT 2019. Contains 322282 sequences. (Running on oeis4.)