A390513 - OEIS

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A390513 as a triangular array

										1
									3		2
								7		4		5
							15		8		9		6
						31		16		17		10		11
					63		32		33		18		19		12
				127		64		65		34		35		20		13
			255		128		129		66		67		36		21		14
		511		256		257		130		131		68		37		22		23
	1023		512		513		258		259		132		69		38		39		24

A390513 as a square array

1	3	7	15	31	63	127	255	511	1023
2	4	8	16	32	64	128	256	512
5	9	17	33	65	129	257	513
6	10	18	34	66	130	258
11	19	35	67	131	259
12	20	36	68	132
13	21	37	69
14	22	38
23	39
24

A390513 as an upper right triangle

1	3	7	15	31	63	127	255	511	1023
	2	4	8	16	32	64	128	256	512
		5	9	17	33	65	129	257	513
			6	10	18	34	66	130	258
				11	19	35	67	131	259
					12	20	36	68	132
						13	21	37	69
							14	22	38
								23	39
									24