A335545 - OEIS

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A335545 as a triangular array

											1
										1		1
									1		1		2
								1		1		2		3
							1		1		2		6		4
						1		1		2		18		24		5
					1		1		2		66		244		120		6
				1		1		2		258		2664		5710		720		7
			1		1		2		1026		29284		322650		188908		5040		8
		1		1		2		4098		322104		19888690		55457604		8702820		40320		9
	1		1		2		16386		3543124		1276095330		16657451236		17484605040		524888040		362880		10

A335545 as a square array

1	1	1	1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1	1	1
2	2	2	2	2	2	2	2	2
3	6	18	66	258	1026	4098	16386
4	24	244	2664	29284	322104	3543124
5	120	5710	322650	19888690	1276095330
6	720	188908	55457604	16657451236
7	5040	8702820	17484605040
8	40320	524888040
9	362880
10

A335545 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1
	1	1	1	1	1	1	1	1	1	1
		2	2	2	2	2	2	2	2	2
			3	6	18	66	258	1026	4098	16386
				4	24	244	2664	29284	322104	3543124
					5	120	5710	322650	19888690	1276095330
						6	720	188908	55457604	16657451236
							7	5040	8702820	17484605040
								8	40320	524888040
									9	362880
										10