A244492 - OEIS

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A244492 as a triangular array

								1
							0		3
						3		0		6
					0		15		0		10
				15		0		45		0		15
			0		105		0		105		0		21
		105		0		420		0		210		0		28
	0		945		0		1260		0		378		0		36
945		0		4725		0		3150		0		630		0		45

A244492 as a square array

1	0	3	0	15	0	105	0	945
3	0	15	0	105	0	945	0
6	0	45	0	420	0	4725
10	0	105	0	1260	0
15	0	210	0	3150
21	0	378	0
28	0	630
36	0
45

A244492 as an upper right triangle

1	0	3	0	15	0	105	0	945
	3	0	15	0	105	0	945	0
		6	0	45	0	420	0	4725
			10	0	105	0	1260	0
				15	0	210	0	3150
					21	0	378	0
						28	0	630
							36	0
								45