A393068 - OEIS

%I #6 Jan 31 2026 16:50:28

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

%T 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,

%U 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0

%N a(n) = A391844(n) * A393067(n).

%H Antti Karttunen, <a href="/A393068/b393068.txt">Table of n, a(n) for n = 1..100000</a>

%H <a href="/index/Ch#char_fns">Index entries for characteristic functions</a>.

%H <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a>.

%o (PARI) A393068(n) = (A391844(n)*A393067(n));

%Y Characteristic function of A392868.

%Y Cf. A391844, A393067.

%K nonn

%O 1

%A _Antti Karttunen_, Jan 31 2026