A053203 - OEIS

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A053203 as a triangular array

														2
													0		0
												0		6		0
											3		0		0		3
										0		0		2		0		0
									0		0		0		0		0		0
								4		3		0		0		0		3		4
							0		0		0		0		0		0		0		0
						0		7		0		7		2		7		0		7		0
					5		0		3		10		0		0		10		3		0		5
				0		12		0		8		0		6		0		8		0		12		0
			0		0		0		0		0		0		0		0		0		0		0		0
		6		0		0		6		0		0		2		0		0		6		0		0		6
	0		0		0		0		0		0		0		0		0		0		0		0

A053203 as a square array

2	0	0	3	0	0	4	0	0	5	0	0	6	0
0	6	0	0	0	3	0	7	0	12	0	0	0
0	0	2	0	0	0	0	3	0	0	0	0
3	0	0	0	0	7	10	8	0	6	0
0	0	0	0	2	0	0	0	0	0
0	3	0	7	0	6	0	0	0
4	0	0	10	0	0	2	0
0	7	3	8	0	0	0
0	0	0	0	0	0
5	12	0	6	0
0	0	0	0
0	0	0
6

A053203 as an upper right triangle

2	0	0	3	0	0	4	0	0	5	0	0	6	0
	0	6	0	0	0	3	0	7	0	12	0	0	0
		0	0	2	0	0	0	0	3	0	0	0	0
			3	0	0	0	0	7	10	8	0	6	0
				0	0	0	0	2	0	0	0	0	0
					0	3	0	7	0	6	0	0	0
						4	0	0	10	0	0	2	0
							0	7	3	8	0	0	0
								0	0	0	0	0	0
									5	12	0	6	0
										0	0	0	0
											0	0	0
												6