OFFSET
1,2
COMMENTS
The corresponding record values are 1, 3, 7, 15, 31, 91, 127, 217, 255, 403, ... (see the link for more values).
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..200
Amiram Eldar, Table of n, a(n), A099378(a(n)) for n = 1..200
EXAMPLE
The first 4 terms of A099378 are 1, 3, 2 and 7. The record values, 1, 3 and 7, occur at 1, 2 and 4, the first 3 terms of this sequence.
MATHEMATICA
d[n_] := Denominator[DivisorSigma[0, n]/DivisorSigma[-1, n]]; dm = 0; s = {}; Do[dn = d[n]; If[dn > dm, dm = dn; AppendTo[s, n]], {n, 1, 10^6}]; s
CROSSREFS
KEYWORD
nonn
AUTHOR
Amiram Eldar, Oct 17 2021
STATUS
approved