A051537 - OEIS

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A051537 as a triangular array

													1
												2		1
											3		6		1
										4		2		12		1
									5		10		15		20		1
								6		3		2		6		30		1
							7		14		21		28		35		42		1
						8		4		24		2		40		12		56		1
					9		18		3		36		45		6		63		72		1
				10		5		30		10		2		15		70		20		90		1
			11		22		33		44		55		66		77		88		99		110		1
		12		6		4		3		60		2		84		6		12		30		132		1
	13		26		39

A051537 as a square array

1	2	3	4	5	6	7	8	9	10	11	12	13
1	6	2	10	3	14	4	18	5	22	6	26
1	12	15	2	21	24	3	30	33	4	39
1	20	6	28	2	36	10	44	3
1	30	35	40	45	2	55	60
1	42	12	6	15	66	2
1	56	63	70	77	84
1	72	20	88	6
1	90	99	12
1	110	30
1	132
1

A051537 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11	12	13
	1	6	2	10	3	14	4	18	5	22	6	26
		1	12	15	2	21	24	3	30	33	4	39
			1	20	6	28	2	36	10	44	3
				1	30	35	40	45	2	55	60
					1	42	12	6	15	66	2
						1	56	63	70	77	84
							1	72	20	88	6
								1	90	99	12
									1	110	30
										1	132
											1