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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
CROSSREFS
Sequence in context: A347799 A335597 A164523 * A326612 A240949 A033159
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 March 28 08:00 EDT 2024. Contains 371235 sequences. (Running on oeis4.)