A193331 - OEIS

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A193331 as a triangular array

												0
											0		1
										0		2		3
									0		4		5		6
								0		6		8		9		10
							0		9		12		13		14		15
						0		12		16		18		19		20		21
					0		16		21		24		25		26		27		28
				0		20		27		30		32		33		34		35		36
			0		25		33		37		40		41		42		43		44		45
		0		30		40		45		48		50		51		52		53		54		55
	0		36		48		54		57		60		61		63		64		64		65		66

A193331 as a square array

0	0	0	0	0	0	0	0	0	0	0	0
1	2	4	6	9	12	16	20	25	30	36
3	5	8	12	16	21	27	33	40	48
6	9	13	18	24	30	37	45	54
10	14	19	25	32	40	48	57
15	20	26	33	41	50	60
21	27	34	42	51	61
28	35	43	52	63
36	44	53	64
45	54	64
55	65
66

A193331 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0
	1	2	4	6	9	12	16	20	25	30	36
		3	5	8	12	16	21	27	33	40	48
			6	9	13	18	24	30	37	45	54
				10	14	19	25	32	40	48	57
					15	20	26	33	41	50	60
						21	27	34	42	51	61
							28	35	43	52	63
								36	44	53	64
									45	54	64
										55	65
											66

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Last modified September 22 16:18 EDT 2024. Contains 376119 sequences. (Running on oeis4.)