A343883 Numbers k such that A023896(k) is a multiple of A340179(k).

3, 4, 6, 8, 10, 16, 30, 54

Offset: 1

Author

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

Keywords

• nonn
• more

Comments

Conjecture: there are only 8 terms.

Examples

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

Crossrefs

Cf. A023896, A340179.

Programs

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]);