A191708 - OEIS

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A191708 as a triangular array

												1
											2		6
										3		8		11
									4		10		14		16
								5		13		18		20		21
							7		17		23		25		27		26
						9		22		29		32		34		33		31
					12		28		37		40		43		42		39		36
				15		35		47		50		54		53		49		45		41
			19		44		59		63		68		67		62		57		52		46
		24		55		74		79		85		84		78		72		65		58		51
	30

A191708 as a square array

1	2	3	4	5	7	9	12	15	19	24	30
6	8	10	13	17	22	28	35	44	55
11	14	18	23	29	37	47	59	74
16	20	25	32	40	50	63	79
21	27	34	43	54	68	85
26	33	42	53	67	84
31	39	49	62	78
36	45	57	72
41	52	65
46	58
51

A191708 as an upper right triangle

1	2	3	4	5	7	9	12	15	19	24	30
	6	8	10	13	17	22	28	35	44	55
		11	14	18	23	29	37	47	59	74
			16	20	25	32	40	50	63	79
				21	27	34	43	54	68	85
					26	33	42	53	67	84
						31	39	49	62	78
							36	45	57	72
								41	52	65
									46	58
										51