A166946 - OEIS

A166946

a(n) = 1 if n is a rounded multiple of phi (1.618033989...), the larger golden ratio value; else a(n) = 0.

%I #7 Aug 26 2022 12:46:07

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

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

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

%N a(n) = 1 if n is a rounded multiple of phi (1.618033989...), the larger golden ratio value; else a(n) = 0.

%C The characteristic function of A007067.

%Y Cf. A001622, A007067, A003849.

%K nonn

%O 0,1

%A _Casey Mongoven_, Oct 24 2009