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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
OFFSET
1,1
COMMENTS
Conjecture: there are only 8 terms.
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
Sequence in context: A120150 A262892 A109441 * A277319 A176986 A325455
KEYWORD
nonn,more
AUTHOR
J. M. Bergot and Robert Israel, May 02 2021
STATUS
approved