A163280 - OEIS

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A163280 as a triangular array

											1
										2		4
									3		6		9
								5		8		12		16
							7		10		15		20		25
						11		14		18		24		30		36
					13		22		21		28		35		42		49
				17		26		27		32		40		48		56		64
			19		34		33		44		45		54		63		72		81
		23		38		39		52		50		60		70		80		90		100
	29		46		51		68		55		66		77		88		99		110		121
31		58		57		76		65		78		84		96		108		120		132		144

A163280 as a square array

1	2	3	5	7	11	13	17	19	23	29	31
4	6	8	10	14	22	26	34	38	46	58
9	12	15	18	21	27	33	39	51	57
16	20	24	28	32	44	52	68	76
25	30	35	40	45	50	55	65
36	42	48	54	60	66	78
49	56	63	70	77	84
64	72	80	88	96
81	90	99	108
100	110	120
121	132
144

A163280 as an upper right triangle

1	2	3	5	7	11	13	17	19	23	29	31
	4	6	8	10	14	22	26	34	38	46	58
		9	12	15	18	21	27	33	39	51	57
			16	20	24	28	32	44	52	68	76
				25	30	35	40	45	50	55	65
					36	42	48	54	60	66	78
						49	56	63	70	77	84
							64	72	80	88	96
								81	90	99	108
									100	110	120
										121	132
											144

											1
										2		4
									3		6		9
								5		8		12		16
							7		10		15		20		25
						11		14		18		24		30		36
					13		22		21		28		35		42		49
				17		26		27		32		40		48		56		64
			19		34		33		44		45		54		63		72		81
		23		38		39		52		50		60		70		80		90		100
	29		46		51		68		55		66		77		88		99		110		121
31		58		57		76		65		78		84		96		108		120		132		144

1	2	3	5	7	11	13	17	19	23	29	31
4	6	8	10	14	22	26	34	38	46	58
9	12	15	18	21	27	33	39	51	57
16	20	24	28	32	44	52	68	76
25	30	35	40	45	50	55	65
36	42	48	54	60	66	78
49	56	63	70	77	84
64	72	80	88	96
81	90	99	108
100	110	120
121	132
144

1	2	3	5	7	11	13	17	19	23	29	31
	4	6	8	10	14	22	26	34	38	46	58
		9	12	15	18	21	27	33	39	51	57
			16	20	24	28	32	44	52	68	76
				25	30	35	40	45	50	55	65
					36	42	48	54	60	66	78
						49	56	63	70	77	84
							64	72	80	88	96
								81	90	99	108
									100	110	120
										121	132
											144

											1
										2		4
									3		6		9
								5		8		12		16
							7		10		15		20		25
						11		14		18		24		30		36
					13		22		21		28		35		42		49
				17		26		27		32		40		48		56		64
			19		34		33		44		45		54		63		72		81
		23		38		39		52		50		60		70		80		90		100
	29		46		51		68		55		66		77		88		99		110		121
31		58		57		76		65		78		84		96		108		120		132		144

1	2	3	5	7	11	13	17	19	23	29	31
4	6	8	10	14	22	26	34	38	46	58
9	12	15	18	21	27	33	39	51	57
16	20	24	28	32	44	52	68	76
25	30	35	40	45	50	55	65
36	42	48	54	60	66	78
49	56	63	70	77	84
64	72	80	88	96
81	90	99	108
100	110	120
121	132
144

1	2	3	5	7	11	13	17	19	23	29	31
	4	6	8	10	14	22	26	34	38	46	58
		9	12	15	18	21	27	33	39	51	57
			16	20	24	28	32	44	52	68	76
				25	30	35	40	45	50	55	65
					36	42	48	54	60	66	78
						49	56	63	70	77	84
							64	72	80	88	96
								81	90	99	108
									100	110	120
										121	132
											144

											1
										2		4
									3		6		9
								5		8		12		16
							7		10		15		20		25
						11		14		18		24		30		36
					13		22		21		28		35		42		49
				17		26		27		32		40		48		56		64
			19		34		33		44		45		54		63		72		81
		23		38		39		52		50		60		70		80		90		100
	29		46		51		68		55		66		77		88		99		110		121
31		58		57		76		65		78		84		96		108		120		132		144

1	2	3	5	7	11	13	17	19	23	29	31
4	6	8	10	14	22	26	34	38	46	58
9	12	15	18	21	27	33	39	51	57
16	20	24	28	32	44	52	68	76
25	30	35	40	45	50	55	65
36	42	48	54	60	66	78
49	56	63	70	77	84
64	72	80	88	96
81	90	99	108
100	110	120
121	132
144

1	2	3	5	7	11	13	17	19	23	29	31
	4	6	8	10	14	22	26	34	38	46	58
		9	12	15	18	21	27	33	39	51	57
			16	20	24	28	32	44	52	68	76
				25	30	35	40	45	50	55	65
					36	42	48	54	60	66	78
						49	56	63	70	77	84
							64	72	80	88	96
								81	90	99	108
									100	110	120
										121	132
											144