A117434 - OEIS

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A117434 as a triangular array

												1
											0		1
										0		1		2
									0		0		4		5
								0		0		2		15		14
							0		0		0		15		56		42
						0		0		0		5		84		210		132
					0		0		0		0		56		420		792		429
				0		0		0		0		14		420		1980		3003		1430
			0		0		0		0		0		210		2640		9009		11440		4862
		0		0		0		0		0		42		1980		15015		40040		43758		16796
	0		0		0		0		0		0		792		15015		80080		175032		167960		58786

A117434 as a square array

1	0	0	0	0	0	0	0	0	0	0	0
1	1	0	0	0	0	0	0	0	0	0
2	4	2	0	0	0	0	0	0	0
5	15	15	5	0	0	0	0	0
14	56	84	56	14	0	0	0
42	210	420	420	210	42	0
132	792	1980	2640	1980	792
429	3003	9009	15015	15015
1430	11440	40040	80080
4862	43758	175032
16796	167960
58786

A117434 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0	0
	1	1	0	0	0	0	0	0	0	0	0
		2	4	2	0	0	0	0	0	0	0
			5	15	15	5	0	0	0	0	0
				14	56	84	56	14	0	0	0
					42	210	420	420	210	42	0
						132	792	1980	2640	1980	792
							429	3003	9009	15015	15015
								1430	11440	40040	80080
									4862	43758	175032
										16796	167960
											58786