A355666 - OEIS

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A355666 as a triangular array

												1
											1		1
										1		0		3
									1		0		2		13
								1		0		0		3		75
							1		0		0		3		28		541
						1		0		0		0		6		125		4683
					1		0		0		0		4		10		1146		47293
				1		0		0		0		0		10		195		8827		545835
			1		0		0		0		0		5		20		1281		94200		7087261
		1		0		0		0		0		0		15		35		5908		1007001		102247563
	1		0		0		0		0		0		6		35		1176		68076		12814390		1622632573

A355666 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
3	2	0	0	0	0	0	0	0	0
13	3	3	0	0	0	0	0	0
75	28	6	4	0	0	0	0
541	125	10	10	5	0	0
4683	1146	195	20	15	6
47293	8827	1281	35	35
545835	94200	5908	1176
7087261	1007001	68076
102247563	12814390
1622632573

A355666 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
		3	2	0	0	0	0	0	0	0	0
			13	3	3	0	0	0	0	0	0
				75	28	6	4	0	0	0	0
					541	125	10	10	5	0	0
						4683	1146	195	20	15	6
							47293	8827	1281	35	35
								545835	94200	5908	1176
									7087261	1007001	68076
										102247563	12814390
											1622632573