login
First column of A174888.
4

%I #7 Jan 14 2017 09:34:47

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

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

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

%N First column of A174888.

%C Begins to differ from A005171 at n=30. a(n) is either 1 or 0. The value is chosen so that row sums in A174888 are equal to the Mobius function A008683, and row counts are equal to A074206.

%Y Cf. A174888, A005171.

%K nonn

%O 1,1

%A _Mats Granvik_, Apr 01 2010