A219519 - OEIS

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A219519 as a triangular array

												2
											2		3
										3		3		4
									4		4		6		5
								5		5		11		9		6
							6		6		24		22		12		7
						7		7		43		68		42		15		8
					8		8		70		166		187		74		18		9
				9		9		111		380		620		465		124		21		10
			10		10		172		821		1961		2125		1090		199		24		11
		11		11		260		1700		5799		9292		6994		2430		307		27		12
	12		12		383

A219519 as a square array

2	2	3	4	5	6	7	8	9	10	11	12
3	3	4	5	6	7	8	9	10	11	12
4	6	11	24	43	70	111	172	260	383
5	9	22	68	166	380	821	1700
6	12	42	187	620	1961	5799
7	15	74	465	2125	9292
8	18	124	1090	6994
9	21	199	2430
10	24	307
11	27
12

A219519 as an upper right triangle

2	2	3	4	5	6	7	8	9	10	11	12
	3	3	4	5	6	7	8	9	10	11	12
		4	6	11	24	43	70	111	172	260	383
			5	9	22	68	166	380	821	1700
				6	12	42	187	620	1961	5799
					7	15	74	465	2125	9292
						8	18	124	1090	6994
							9	21	199	2430
								10	24	307
									11	27
										12