A123353 - OEIS

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A123353 as a triangular array

						1
					1		1
				1		2		1
			1		3		6		1
		1		4		20		19		1
	1		5		50		155		62		1
1		6		105		805		1315		207		1

A123353 as a square array

1	1	1	1	1	1	1
1	2	3	4	5	6
1	6	20	50	105
1	19	155	805
1	62	1315
1	207
1

A123353 as an upper right triangle

1	1	1	1	1	1	1
	1	2	3	4	5	6
		1	6	20	50	105
			1	19	155	805
				1	62	1315
					1	207
						1