%I #2 Mar 30 2012 18:53:09
%S 1,1,1,3,1,3,3,13,1,3,3,13,3,13,13,75,1,3,3,13,3,13,13,75,3,13,13,75,
%T 13,75,75,541
%N First column in matrix inverse of (A047999*A154990).
%e First column in the table:
%e 1,
%e 1,1,
%e 1,0,1,
%e 3,1,1,1,
%e 1,0,0,0,1,
%e 3,1,0,0,1,1,
%e 3,0,1,0,1,0,1,
%e 13,3,3,1,3,1,1,1,
%Y Cf. It appears that A000670 = A163270(A000079).
%K nonn
%O 1,4
%A _Mats Granvik_, Jul 24 2009