A066041 - OEIS

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A066041 as a triangular array

							1
						2		1
					2		3		1
				2		3		4		1
			2		3		4		5		1
		2		4		6		5		6		1
	3		6		8		9		7		7		1
3		6		11		12		12		9		8		1

A066041 as a square array

1	2	2	2	2	2	3	3
1	3	3	3	4	6	6
1	4	4	6	8	11
1	5	5	9	12
1	6	7	12
1	7	9
1	8
1

A066041 as an upper right triangle

1	2	2	2	2	2	3	3
	1	3	3	3	4	6	6
		1	4	4	6	8	11
			1	5	5	9	12
				1	6	7	12
					1	7	9
						1	8
							1