%I #5 Mar 30 2012 17:29:08
%S 0,1,0,2,0,0,1,0,1,0,0,2,1,2,0,5,0,3,2,3,0,5,5,0,4,3,4,0,5,4,5,0,5,4,
%T 5,0,5,3,3,5,0,6,5,6,0,5,2,1,2,5,0,7,6,7,0,5,1,10,10,1,5,0,8,7,8,0,5,
%U 0,9,8,9,0,5,0,9,8,9,0,5,12,8,6,6,8,12,5,0,10,9,10,0,5,12,7,4,3,4,7,12,5,0
%N Triangle read by rows where the n-th row has n terms: T(n,i)=(i+2)^2-4 mod n.
%e 1. 0
%e 2. 1 0
%e 3. 2 0 0
%e 4. 1 0 1 0
%e 5. 0 2 1 2 0
%e 6. 5 0 3 2 3 0
%e 7. 5 5 0 4 3 4 0
%e 8. 5 4 5 0 5 4 5 0
%e 9. 5 3 3 5 0 6 5 6 0
%e ...
%Y Cf. A028347.
%K nonn,tabl
%O 1,4
%A _Gary W. Adamson_, Sep 09 2003
%E Edited by _Ray Chandler_, Sep 14 2003