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Triangle read by rows: T(n, k) = 2^(n-k)*3^k, n >= 1, 0 <= k < n.
2

%I #7 Dec 05 2013 19:56:03

%S 2,4,6,8,12,18,16,24,36,54,32,48,72,108,162,64,96,144,216,324,486,128,

%T 192,288,432,648,972,1458,256,384,576,864,1296,1944,2916,4374,512,768,

%U 1152,1728,2592,3888,5832,8748,13122,1024,1536,2304,3456,5184,7776

%N Triangle read by rows: T(n, k) = 2^(n-k)*3^k, n >= 1, 0 <= k < n.

%e Triangle begins:

%e 2

%e 4 6

%e 8 12 18

%e 16 24 36 54

%e 32 48 72 108 162

%e ...

%o (PARI) tabl(nrows) = {for (n=1, nrows, for (k=0, n-1, print1(2^(n-k)*3^k, ", ");); print(););} \\ _Michel Marcus_, May 14 2013

%Y Leading diagonal is given by A025192.

%Y Cf. A025192, A081955, A081956, A002262, A090404.

%K nonn,tabl

%O 1,1

%A _Amarnath Murthy_, Apr 02 2003

%E Corrected and extended by _David Wasserman_, Jul 21 2004