A297551 - OEIS

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A297551 as a triangular array

											1
										2		4
									3		6		7
								5		9		8		12
							10		11		13		18		19
						15		14		17		24		29		28
					21		16		23		30		34		35		51
				42		20		25		33		44		50		77		76
			63		22		27		39		49		72		99		114		115
		85		26		31		45		55		78		113		141		140		204
	170		37		32		48		67		92		119		179		205

A297551 as a square array

1	2	3	5	10	15	21	42	63	85	170
4	6	9	11	14	16	20	22	26	37
7	8	13	17	23	25	27	31	32
12	18	24	30	33	39	45	48
19	29	34	44	49	55	67
28	35	50	72	78	92
51	77	99	113	119
76	114	141	179
115	140	205
204

A297551 as an upper right triangle

1	2	3	5	10	15	21	42	63	85	170
	4	6	9	11	14	16	20	22	26	37
		7	8	13	17	23	25	27	31	32
			12	18	24	30	33	39	45	48
				19	29	34	44	49	55	67
					28	35	50	72	78	92
						51	77	99	113	119
							76	114	141	179
								115	140	205
									204