A180823 - OEIS

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A180823 as a triangular array

												0
											0		0
										0		0		0
									0		0		0		1
								0		0		0		1		0
							0		0		0		1		2		2
						0		0		0		1		0		6		0
					0		0		0		1		3		15		8		3
				0		0		0		1		7		30		32		27		3
			0		0		0		1		4		57		102		111		30		4
		0		0		0		1		9		102		286		485		210		59		0
	0		0		0		1		5		168		715		1701		1209		497		64		9
0		0		0		1		11		267		1636		5509

A180823 as a square array

0	0	0	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0	0
1	1	1	1	1	1	1	1	1	1
0	2	0	3	7	4	9	5	11
2	6	15	30	57	102	168	267
0	8	32	102	286	715	1636
3	27	111	485	1701	5509
3	30	210	1209
4	59	497
0	64
9

A180823 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0	0
	0	0	0	0	0	0	0	0	0	0	0	0
		0	0	0	0	0	0	0	0	0	0	0
			1	1	1	1	1	1	1	1	1	1
				0	2	0	3	7	4	9	5	11
					2	6	15	30	57	102	168	267
						0	8	32	102	286	715	1636
							3	27	111	485	1701	5509
								3	30	210	1209
									4	59	497
										0	64
											9