OFFSET
1,2
LINKS
FORMULA
Alternatively, if we set also the second column explicitly as:
then the rest of entries in each row are obtained just by doubling the preceding term on the same row: A(r,c) = 2*A(r,c-1), for c >= 3.
As a composition of other permutations:
EXAMPLE
The top left 12 x 12 corner of the array:
1, 3, 6, 12, 24, 48, 96, 192, 384, 768, 1536, 3072
2, 5, 10, 20, 40, 80, 160, 320, 640, 1280, 2560, 5120
4, 9, 18, 36, 72, 144, 288, 576, 1152, 2304, 4608, 9216
7, 15, 30, 60, 120, 240, 480, 960, 1920, 3840, 7680, 15360
8, 17, 34, 68, 136, 272, 544, 1088, 2176, 4352, 8704, 17408
11, 23, 46, 92, 184, 368, 736, 1472, 2944, 5888, 11776, 23552
13, 27, 54, 108, 216, 432, 864, 1728, 3456, 6912, 13824, 27648
14, 29, 58, 116, 232, 464, 928, 1856, 3712, 7424, 14848, 29696
16, 33, 66, 132, 264, 528, 1056, 2112, 4224, 8448, 16896, 33792
19, 39, 78, 156, 312, 624, 1248, 2496, 4992, 9984, 19968, 39936
21, 43, 86, 172, 344, 688, 1376, 2752, 5504, 11008, 22016, 44032
22, 45, 90, 180, 360, 720, 1440, 2880, 5760, 11520, 23040, 46080
PROG
KEYWORD
AUTHOR
Antti Karttunen, Nov 03 2016
STATUS
approved