A163621 - OEIS

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A163621 as a triangular array

												3
											5		6
										7		10		7
									9		14		11		12
								11		18		15		20		13
							13		22		19		28		21		14
						15		26		23		36		29		22		15
					17		30		27		44		37		30		23		24
				19		34		31		52		45		38		31		40		25
			21		38		35		60		53		46		39		56		41		26
		23		42		39		68		61		54		47		72		57		42		27
	25		46		43		76		69

A163621 as a square array

3	5	7	9	11	13	15	17	19	21	23	25
6	10	14	18	22	26	30	34	38	42	46
7	11	15	19	23	27	31	35	39	43
12	20	28	36	44	52	60	68	76
13	21	29	37	45	53	61	69
14	22	30	38	46	54
15	23	31	39	47
24	40	56	72
25	41	57
26	42
27

A163621 as an upper right triangle

3	5	7	9	11	13	15	17	19	21	23	25
	6	10	14	18	22	26	30	34	38	42	46
		7	11	15	19	23	27	31	35	39	43
			12	20	28	36	44	52	60	68	76
				13	21	29	37	45	53	61	69
					14	22	30	38	46	54
						15	23	31	39	47
							24	40	56	72
								25	41	57
									26	42
										27