A159986 - OEIS

%I #14 Jan 25 2020 01:33:20

%S 1,1,2,5,0,0,6,2,2,4,3,0,0,4,6,6,5,2,0,0,4,6,6,5,2,0,0,0,0,0,0,0,0,0,

%T 0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,2,2,4,3,0,0,5,4,4,1,6,0,0,1,5,5,3,4,0,

%U 0,1,5,5,3,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,6,6,5,2,0,0,1,5

%N Catalan numbers read modulo 7.

%F a(n) = A000108(n) mod 7.

%Y Cf. A000108 (Catalan numbers).

%K easy,nonn

%O 0,3

%A _Philippe Deléham_, Apr 28 2009

%E More terms from _Philippe Deléham_, Sep 16 2009

%E Corrected and extended by _Philippe Deléham_, Oct 23 2011