A328697 Rectangular array R read by descending antidiagonals: divide the multiples of 3 in the Wythoff array (A035513) by 3, and delete all others.
1, 7, 6, 48, 41, 2, 329, 281, 14, 3, 2255, 1926, 96, 5, 4, 15456, 13201, 658, 8, 28, 20, 105937, 90481, 4510, 13, 192, 137, 15, 726103, 620166, 30912, 21, 1316, 939, 103, 27, 4976784, 4250681, 211874, 34, 9020, 6436, 706, 185, 12, 34111385, 29134601, 1452206
Offset: 1
Examples
Row 1 of the Wythoff array is (1,2,3,5,8,13,21,34,55,89,144,...), so that row 1 of R is (1,7,48,329,2255,...). ===================== Northwest corner of R: 1, 7, 48, 329, 2255, 15456, 105937, 726103 6, 41, 281, 1926, 13201, 90481, 620166, 4250681 2, 14, 96, 658, 4510, 30912, 211874, 1452206 3, 5, 8, 13, 21, 34, 55, 89 4, 28, 192, 1316, 9020, 61824, 423748, 2904412 20, 137, 939, 6436, 44113, 302355, 2072372, 14204249 15, 103, 706, 4839, 33167, 227330, 1558143, 10679671
Comments