A210874 - OEIS

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A210874 as a triangular array

												1
											2		3
										3		5		4
									4		7		7		7
								5		9		10		12		11
							6		11		13		17		19		18
						7		13		16		22		27		31		29
					8		15		19		27		35		44		50		47
				9		17		22		32		43		57		71		81		76
			10		19		25		37		51		70		92		115		131		123
		11		21		28		42		59		83		113		149		186		212		199
	12		23		31

A210874 as a square array

1	2	3	4	5	6	7	8	9	10	11	12
3	5	7	9	11	13	15	17	19	21	23
4	7	10	13	16	19	22	25	28	31
7	12	17	22	27	32	37	42
11	19	27	35	43	51	59
18	31	44	57	70	83
29	50	71	92	113
47	81	115	149
76	131	186
123	212
199

A210874 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11	12
	3	5	7	9	11	13	15	17	19	21	23
		4	7	10	13	16	19	22	25	28	31
			7	12	17	22	27	32	37	42
				11	19	27	35	43	51	59
					18	31	44	57	70	83
						29	50	71	92	113
							47	81	115	149
								76	131	186
									123	212
										199