A172467 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A172467 as a triangular array

													1
												1		2
											1		2		3
										1		4		3		4
									1		4		6		4		5
								1		6		9		8		5		6
							1		6		12		12		10		6		7
						1		8		15		20		15		12		7		8
					1		8		21		24		25		18		14		8		9
				1		10		24		36		35		30		21		16		9		10
			1		10		30		44		50		42		35		24		18		10		11
		1		12		36		60		65		66		49		40		27		20		11		12
	1

A172467 as a square array

1	1	1	1	1	1	1	1	1	1	1	1	1
2	2	4	4	6	6	8	8	10	10	12
3	3	6	9	12	15	21	24	30	36
4	4	8	12	20	24	36	44	60
5	5	10	15	25	35	50	65
6	6	12	18	30	42	66
7	7	14	21	35	49
8	8	16	24	40
9	9	18	27
10	10	20
11	11
12

A172467 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1	1
	2	2	4	4	6	6	8	8	10	10	12
		3	3	6	9	12	15	21	24	30	36
			4	4	8	12	20	24	36	44	60
				5	5	10	15	25	35	50	65
					6	6	12	18	30	42	66
						7	7	14	21	35	49
							8	8	16	24	40
								9	9	18	27
									10	10	20
										11	11
											12