A127780 - OEIS

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A127780 as a triangular array

								1
							3		6
						5		10		15
					7		14		21		28
				9		18		27		36		45
			11		22		33		44		55		66
		13		26		39		52		65		78		91
	15		30		45		60		75		90		105		120

A127780 as a square array

1	3	5	7	9	11	13	15
6	10	14	18	22	26	30
15	21	27	33	39	45
28	36	44	52	60
45	55	65	75
66	78	90
91	105
120

A127780 as an upper right triangle

1	3	5	7	9	11	13	15
	6	10	14	18	22	26	30
		15	21	27	33	39	45
			28	36	44	52	60
				45	55	65	75
					66	78	90
						91	105
							120