A056857 - OEIS

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A056857 as a triangular array

											1
										1		1
									2		2		1
								5		6		3		1
							15		20		12		4		1
						52		75		50		20		5		1
					203		312		225		100		30		6		1
				877		1421		1092		525		175		42		7		1
			4140		7016		5684		2912		1050		280		56		8		1
		21147		37260		31572		17052		6552		1890		420		72		9		1
	115975		211470		186300		105240		42630		13104		3150		600		90		10		1

A056857 as a square array

1	1	2	5	15	52	203	877	4140	21147	115975
1	2	6	20	75	312	1421	7016	37260	211470
1	3	12	50	225	1092	5684	31572	186300
1	4	20	100	525	2912	17052	105240
1	5	30	175	1050	6552	42630
1	6	42	280	1890	13104
1	7	56	420	3150
1	8	72	600
1	9	90
1	10
1

A056857 as an upper right triangle

1	1	2	5	15	52	203	877	4140	21147	115975
	1	2	6	20	75	312	1421	7016	37260	211470
		1	3	12	50	225	1092	5684	31572	186300
			1	4	20	100	525	2912	17052	105240
				1	5	30	175	1050	6552	42630
					1	6	42	280	1890	13104
						1	7	56	420	3150
							1	8	72	600
								1	9	90
									1	10
										1