A200251 - OEIS

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A200251 as a triangular array

										2
									3		3
								4		6		5
							5		10		12		8
						6		15		26		24		13
					7		21		45		69		48		21
				8		28		75		135		181		96		34
			9		36		112		267		405		476		192		55
		10		45		164		448		951		1215		1252		384		89
	11		55		225		750		1792		3387		3645		3292		768		144
12		66		305		1125		3434		7168		12063

A200251 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
21	96	476	1215	3387	7168
34	192	1252	3645	12063
55	384	3292
89	768
144

A200251 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
					21	96	476	1215	3387	7168
						34	192	1252	3645	12063
							55	384	3292
								89	768
									144