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%I #5 Dec 05 2013 19:55:54
%S 1,2,4,3,6,9,4,6,8,10,5,10,15,20,25,6,8,9,10,12,14,7,14,21,28,35,42,
%T 49,8,10,12,14,16,18,20,22,9,12,15,18,21,24,27,30,33,10,12,14,15,16,
%U 18,20,22,24,25,11,22,33,44,55,66,77,88,99,110,121,12,14,15,16,18,20,21,22
%N Triangle read by rows in which the n-th row contains n numbers starting with n and not coprime to n, except the first row is {1}.
%e 1; 2,4; 3,6,9; 4,6,8,10; 5,10,15,20,25; 6,8,9,10,12,14; 7,14,21,28,35,42,49; ...
%Y Cf. A077584, A077660.
%K nonn,tabl
%O 1,2
%A _Amarnath Murthy_, Nov 14 2002
%E More terms from _Sascha Kurz_, Jan 11 2003
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