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A114081 sigma(n) plus the n-th prime gives a cube. 2
178, 185, 268, 548, 581, 2142, 9474, 17027, 17108, 66367, 71212, 155131, 230521, 296001, 318558, 335880, 555896, 620041, 1141190, 1158839, 1559606, 1650646, 2021877, 3274046, 3655189, 3668878, 4023383 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..27.

EXAMPLE

sigma(155131)+p(155131)=2248091=131^3.

PROG

(PARI) isok(n) = ispower(sigma(n) + prime(n), 3); \\ Michel Marcus, Jan 11 2014

CROSSREFS

Cf. A114082, A114083.

Sequence in context: A189160 A053018 A046436 * A217037 A224600 A279093

Adjacent sequences:  A114078 A114079 A114080 * A114082 A114083 A114084

KEYWORD

nonn

AUTHOR

Giovanni Resta, Feb 13 2006

STATUS

approved

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Last modified August 5 18:00 EDT 2021. Contains 346488 sequences. (Running on oeis4.)