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A227305 Numbers n such that sigma(n) - sigma(n-1) divides n. 0
2, 3, 5, 6, 10, 19, 52, 118, 1054, 3201, 8586, 9802, 16120, 60556, 140698, 145216, 11273536, 29886160, 44868748, 8748377956, 325377469696, 2368739714188 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(23) > 2.5*10^12. - Giovanni Resta, Jul 13 2013

LINKS

Table of n, a(n) for n=1..22.

CROSSREFS

Cf. A053222, A067816, A223138, A225211.

Sequence in context: A018727 A161715 A164523 * A240949 A033159 A199366

Adjacent sequences:  A227302 A227303 A227304 * A227306 A227307 A227308

KEYWORD

nonn,more

AUTHOR

Alex Ratushnyak, Jul 05 2013

EXTENSIONS

a(21)-a(22) from Giovanni Resta, Jul 13 2013

STATUS

approved

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Last modified June 18 18:52 EDT 2019. Contains 324215 sequences. (Running on oeis4.)