A194912 - OEIS

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A194912 as a triangular array

												1
											2		3
										4		5		6
									8		9		10		7
								12		14		15		11		13
							17		19		21		16		18		20
						23		25		27		22		24		26		28
					31		33		35		29		32		34		36		30
				39		42		44		37		40		43		45		38		41
			48		51		54		46		49		52		55		47		50		53
		58		61		64		56		59		62		65		57		60		63		66
	70		73		76

A194912 as a square array

1	2	4	8	12	17	23	31	39	48	58	70
3	5	9	14	19	25	33	42	51	61	73
6	10	15	21	27	35	44	54	64	76
7	11	16	22	29	37	46	56
13	18	24	32	40	49	59
20	26	34	43	52	62
28	36	45	55	65
30	38	47	57
41	50	60
53	63
66

A194912 as an upper right triangle

1	2	4	8	12	17	23	31	39	48	58	70
	3	5	9	14	19	25	33	42	51	61	73
		6	10	15	21	27	35	44	54	64	76
			7	11	16	22	29	37	46	56
				13	18	24	32	40	49	59
					20	26	34	43	52	62
						28	36	45	55	65
							30	38	47	57
								41	50	60
									53	63
										66