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A343883 Numbers k such that A023896(k) is a multiple of A340179(k). 0
3, 4, 6, 8, 10, 16, 30, 54 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: there are only 8 terms.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

a(6) = 16 is a term because A023896(16) = 64 is a multiple of A340179(16) = 32.

MAPLE

filter:= proc(n) local S, s, t;

  S:= select(t -> igcd(t, n)=1, [$1..n-1]);

  s:= nops(S)*n/2;

  s mod add(s mod t, t=S) = 0;

end proc:

select(filter, [$3..1000]);

CROSSREFS

Cf. A023896, A340179.

Sequence in context: A120150 A262892 A109441 * A277319 A176986 A325455

Adjacent sequences:  A343880 A343881 A343882 * A343885 A343886 A343887

KEYWORD

nonn,more

AUTHOR

J. M. Bergot and Robert Israel, May 02 2021

STATUS

approved

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Last modified June 23 09:59 EDT 2021. Contains 345397 sequences. (Running on oeis4.)