A361322 - OEIS

%I #7 Aug 27 2024 18:54:53

%S 0,3,5,12,10,18,17,9,40,34,6,20,24,11,33,36,68,65,129,130,66,72,13,7,

%T 258,264,136,132,21,257,288,48,19,513,516,14,35,1025,1028,260,259,

%U 2049,2052,22,514,520,25,4097,4098,1026,1032,41,8193,8194,2050,2056,73

%N The binary expansion of a(n) specifies which primes divide A361321(n).

%C Conjecture: The sequence is a permutation of A057716.

%H Rémy Sigrist, <a href="/A361322/a361322.gp.txt">PARI program</a>

%F a(n) = A087207(A360519(n)).

%o (PARI) \\ See Links section.

%Y Cf. A057716, A087207, A361321.

%K nonn,base

%O 1,2

%A _Scott R. Shannon_, _Rémy Sigrist_ and _N. J. A. Sloane_, Mar 09 2023