A081954 Triangle read by rows: T(n, k) = 2^(n-k)*3^k, n >= 1, 0 <= k < n.
2, 4, 6, 8, 12, 18, 16, 24, 36, 54, 32, 48, 72, 108, 162, 64, 96, 144, 216, 324, 486, 128, 192, 288, 432, 648, 972, 1458, 256, 384, 576, 864, 1296, 1944, 2916, 4374, 512, 768, 1152, 1728, 2592, 3888, 5832, 8748, 13122, 1024, 1536, 2304, 3456, 5184, 7776
Offset: 1
Examples
Triangle begins: 2 4 6 8 12 18 16 24 36 54 32 48 72 108 162 ...
Programs
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PARI
tabl(nrows) = {for (n=1, nrows, for (k=0, n-1, print1(2^(n-k)*3^k, ", ");); print(););} \\ Michel Marcus, May 14 2013
Extensions
Corrected and extended by David Wasserman, Jul 21 2004