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A120772
Triangular array, permutation of A119973. a(r,r) = A084109(r); a(r+1,c) = 2*a(r,c).
1
21, 42, 33, 84, 66, 57, 168, 132, 114, 69, 336, 264, 228, 138, 77, 672, 528, 456, 276, 154, 93, 1344, 1056, 912, 552, 308, 186, 105, 2688, 2112, 1824, 1104, 616, 372, 210, 129, 5376, 4224, 3648, 2208, 1232, 744, 420, 258, 133, 10752, 8448, 7296, 4416
OFFSET
1,1
EXAMPLE
21
42 33
84 66 57
168 132 114 69
336 264 228 138 77
CROSSREFS
KEYWORD
easy,nonn,tabl
AUTHOR
Alford Arnold, Jul 04 2006
EXTENSIONS
Edited by Don Reble, Jul 24 2006
STATUS
approved