A105020 - OEIS

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A105020 as a triangular array

											1
										3		4
									5		8		9
								7		12		15		16
							9		16		21		24		25
						11		20		27		32		35		36
					13		24		33		40		45		48		49
				15		28		39		48		55		60		63		64
			17		32		45		56		65		72		77		80		81
		19		36		51		64		75		84		91		96		99		100
	21		40		57		72		85		96		105		112		117		120		121

A105020 as a square array

1	3	5	7	9	11	13	15	17	19	21
4	8	12	16	20	24	28	32	36	40
9	15	21	27	33	39	45	51	57
16	24	32	40	48	56	64	72
25	35	45	55	65	75	85
36	48	60	72	84	96
49	63	77	91	105
64	80	96	112
81	99	117
100	120
121

A105020 as an upper right triangle

1	3	5	7	9	11	13	15	17	19	21
	4	8	12	16	20	24	28	32	36	40
		9	15	21	27	33	39	45	51	57
			16	24	32	40	48	56	64	72
				25	35	45	55	65	75	85
					36	48	60	72	84	96
						49	63	77	91	105
							64	80	96	112
								81	99	117
									100	120
										121