A355610 - OEIS

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A355610 as a triangular array

												1
											1		1
										1		0		2
									1		0		2		6
								1		0		0		3		24
							1		0		0		3		20		120
						1		0		0		0		6		90		720
					1		0		0		0		4		20		594		5040
				1		0		0		0		0		10		180		4200		40320
			1		0		0		0		0		5		40		1134		34544		362880
		1		0		0		0		0		0		15		210		7980		316008		3628800
	1		0		0		0		0		0		6		70		1904		71280		3207240		39916800

A355610 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
1	0	0	0	0	0	0	0	0	0	0
2	2	0	0	0	0	0	0	0	0
6	3	3	0	0	0	0	0	0
24	20	6	4	0	0	0	0
120	90	20	10	5	0	0
720	594	180	40	15	6
5040	4200	1134	210	70
40320	34544	7980	1904
362880	316008	71280
3628800	3207240
39916800

A355610 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	1	0	0	0	0	0	0	0	0	0	0
		2	2	0	0	0	0	0	0	0	0
			6	3	3	0	0	0	0	0	0
				24	20	6	4	0	0	0	0
					120	90	20	10	5	0	0
						720	594	180	40	15	6
							5040	4200	1134	210	70
								40320	34544	7980	1904
									362880	316008	71280
										3628800	3207240
											39916800