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 A073957 Indices of records of the sum of the anti-divisors function. 1
 1, 3, 4, 5, 7, 10, 13, 17, 22, 25, 27, 28, 32, 38, 45, 52, 58, 60, 63, 67, 77, 94, 95, 105, 112, 115, 122, 130, 137, 143, 157, 158, 175, 193, 203, 238, 247, 270, 280, 292, 297, 315, 347, 357, 410, 423, 445, 462, 472, 473, 500, 553, 578, 630, 637, 675, 682, 742 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS See A066272 for definition of anti-divisor. LINKS Amiram Eldar, Table of n, a(n) for n = 1..1000 MAPLE with(numtheory); P:= proc(n) local a, b, i, k; b:=0; for i from 3 to n do    a:=0;    for k from 2 to i-1 do      if abs((i mod k)- k/2) < 1 then a:=a+k; fi;    od;    if a>b then print(i); b:=a; fi; od; end: P(1000);  # Paolo P. Lava, Jul 19 2011 CROSSREFS Cf. A066272, A066417. Sequence in context: A201025 A288451 A236384 * A309916 A162311 A003312 Adjacent sequences:  A073954 A073955 A073956 * A073958 A073959 A073960 KEYWORD nonn,changed AUTHOR Jason Earls, Sep 03 2002 EXTENSIONS Name clarified by Amiram Eldar, Jan 12 2020 STATUS approved

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Last modified January 25 19:09 EST 2020. Contains 331249 sequences. (Running on oeis4.)