A292958 - OEIS

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A292958 as a triangular array

											1
										2		4
									3		7		8
								5		11		14		12
							6		16		21		22		17
						9		20		29		33		30		24
					10		26		38		44		45		40		28
				13		32		47		57		61		59		51		35
			15		37		56		69		77		80		73		60		41
		18		43		66		84		94		101		97		88		71		49
	19		50		76		99		113		123		124		115		103		82

A292958 as a square array

1	2	3	5	6	9	10	13	15	18	19
4	7	11	16	20	26	32	37	43	50
8	14	21	29	38	47	56	66	76
12	22	33	44	57	69	84	99
17	30	45	61	77	94	113
24	40	59	80	101	123
28	51	73	97	124
35	60	88	115
41	71	103
49	82

A292958 as an upper right triangle

1	2	3	5	6	9	10	13	15	18	19
	4	7	11	16	20	26	32	37	43	50
		8	14	21	29	38	47	56	66	76
			12	22	33	44	57	69	84	99
				17	30	45	61	77	94	113
					24	40	59	80	101	123
						28	51	73	97	124
							35	60	88	115
								41	71	103
									49	82