A377778 - OEIS

%I #5 Nov 13 2024 17:25:30

%S 1,1,1,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,11,0,0,0,1,0,1,0,0,0,1,0,11,0,0,

%T 0,5,0,1,0,0,0,1,0,1,0,0,0,1,0,19,0,0,0,1,0,19,0,0,0,31,0,1,0,0,0,17,

%U 0,1,0,0,0,1,0,11,0,0,0,1,0,7,0,0,0,1,0,7

%N a(n) = A377777(n)/n.

%C a(n) = 1 if and only if n is in A003309.

%H Pontus von Brömssen, <a href="/A377778/b377778.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A003309, A377776, A377777.

%K nonn

%O 1,19

%A _Pontus von Brömssen_, Nov 07 2024