A274742 - OEIS

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A274742 as a triangular array

													1
												1		1
											2		2		1
										2		4		3		1
									3		6		6		4		1
								3		9		12		8		5		1
							4		12		18		20		10		6		1
						4		16		30		30		30		12		7		1
					5		20		40		60		45		42		14		8		1
				5		25		60		80		105		63		56		16		9		1
			6		30		75		140		140		168		84		72		18		10		1
		6		36		105		175		280		224		252		108		90		20		11		1
	7		42		126		280		350		504		336		360		135		110		22		12		1

A274742 as a square array

1	1	2	2	3	3	4	4	5	5	6	6	7
1	2	4	6	9	12	16	20	25	30	36	42
1	3	6	12	18	30	40	60	75	105	126
1	4	8	20	30	60	80	140	175	280
1	5	10	30	45	105	140	280	350
1	6	12	42	63	168	224	504
1	7	14	56	84	252	336
1	8	16	72	108	360
1	9	18	90	135
1	10	20	110
1	11	22
1	12
1

A274742 as an upper right triangle

1	1	2	2	3	3	4	4	5	5	6	6	7
	1	2	4	6	9	12	16	20	25	30	36	42
		1	3	6	12	18	30	40	60	75	105	126
			1	4	8	20	30	60	80	140	175	280
				1	5	10	30	45	105	140	280	350
					1	6	12	42	63	168	224	504
						1	7	14	56	84	252	336
							1	8	16	72	108	360
								1	9	18	90	135
									1	10	20	110
										1	11	22
											1	12
												1

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Last modified September 24 09:21 EDT 2024. Contains 376189 sequences. (Running on oeis4.)