A051173 - OEIS

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A051173 as a triangular array

												1
											2		2
										3		6		3
									4		4		12		4
								5		10		15		20		5
							6		6		6		12		30		6
						7		14		21		28		35		42		7
					8		8		24		8		40		24		56		8
				9		18		9		36		45		18		63		72		9
			10		10		30		20		10		30		70		40		90		10
		11		22		33		44		55		66		77		88		99		110		11
	12		12		12		12		60		12		84		24		36		60		132		12

A051173 as a square array

1	2	3	4	5	6	7	8	9	10	11	12
2	6	4	10	6	14	8	18	10	22	12
3	12	15	6	21	24	9	30	33	12
4	20	12	28	8	36	20	44	12
5	30	35	40	45	10	55	60
6	42	24	18	30	66	12
7	56	63	70	77	84
8	72	40	88	24
9	90	99	36
10	110	60
11	132
12

A051173 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11	12
	2	6	4	10	6	14	8	18	10	22	12
		3	12	15	6	21	24	9	30	33	12
			4	20	12	28	8	36	20	44	12
				5	30	35	40	45	10	55	60
					6	42	24	18	30	66	12
						7	56	63	70	77	84
							8	72	40	88	24
								9	90	99	36
									10	110	60
										11	132
											12