A196844 - OEIS

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A196844 as a triangular array

										1
									1		1
								1		3		2
							1		6		11		6
						1		10		35		50		24
					1		16		95		260		324		144
				1		23		207		925		2144		2412		1008
			1		31		391		2581		9544		19564		20304		8064
		1		40		670		6100		32773		105460		196380		190800		72576
	1		50		1070		12800		93773		433190		1250980

A196844 as a square array

1	1	1	1	1	1	1	1	1	1
1	3	6	10	16	23	31	40	50
2	11	35	95	207	391	670	1070
6	50	260	925	2581	6100	12800
24	324	2144	9544	32773	93773
144	2412	19564	105460	433190
1008	20304	196380	1250980
8064	190800
72576

A196844 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	1	3	6	10	16	23	31	40	50
		2	11	35	95	207	391	670	1070
			6	50	260	925	2581	6100	12800
				24	324	2144	9544	32773	93773
					144	2412	19564	105460	433190
						1008	20304	196380	1250980
							8064	190800
								72576