A128228 - OEIS

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A128228 as a triangular array

										1
									2		2
								3		6		3
							4		8		12		4
						5		10		15		20		5
					6		12		18		24		30		6
				7		14		21		28		35		42		7
			8		16		24		32		40		48		56		8
		9		18		27		36		45		54		63		72		9
	10		20		30		40		50		60		70		80		90		10

A128228 as a square array

1	2	3	4	5	6	7	8	9	10
2	6	8	10	12	14	16	18	20
3	12	15	18	21	24	27	30
4	20	24	28	32	36	40
5	30	35	40	45	50
6	42	48	54	60
7	56	63	70
8	72	80
9	90
10

A128228 as an upper right triangle

1	2	3	4	5	6	7	8	9	10
	2	6	8	10	12	14	16	18	20
		3	12	15	18	21	24	27	30
			4	20	24	28	32	36	40
				5	30	35	40	45	50
					6	42	48	54	60
						7	56	63	70
							8	72	80
								9	90
									10