A120772 Triangular array, permutation of A119973. a(r,r) = A084109(r); a(r+1,c) = 2*a(r,c).

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

Author

Alford Arnold, Jul 04 2006

Keywords

• easy
• nonn
• tabl

Examples

			21
42 33
84 66 57
168 132 114 69
336 264 228 138 77
		

Crossrefs

Cf. A001481, A084109, A119973.

Extensions

Edited by Don Reble, Jul 24 2006