A200469 - OEIS

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A200469 as a triangular array

											2
										3		3
									4		6		5
								5		10		12		8
							6		15		26		24		13
						7		21		45		69		48		20
					8		28		75		135		181		98		29
				9		36		112		267		405		455		199		43
			10		45		164		448		951		1213		1120		400		63
		11		55		225		750		1792		3328		3627		2794		800		91
	12		66		305		1125		3434		7140		11576		10846

A200469 as a square array

2	3	4	5	6	7	8	9	10	11	12
3	6	10	15	21	28	36	45	55	66
5	12	26	45	75	112	164	225	305
8	24	69	135	267	448	750	1125
13	48	181	405	951	1792	3434
20	98	455	1213	3328	7140
29	199	1120	3627	11576
43	400	2794	10846
63	800
91

A200469 as an upper right triangle

2	3	4	5	6	7	8	9	10	11	12
	3	6	10	15	21	28	36	45	55	66
		5	12	26	45	75	112	164	225	305
			8	24	69	135	267	448	750	1125
				13	48	181	405	951	1792	3434
					20	98	455	1213	3328	7140
						29	199	1120	3627	11576
							43	400	2794	10846
								63	800
									91