A274883 - OEIS

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A274883 as a triangular array

										1
									1		2
								1		4		4
							3		6		12		8
						2		24		24		32		16
					10		20		120		80		80		32
				5		120		120		480		240		192		64
			35		70		840		560		1680		672		448		128
		14		560		560		4480		2240		5376		1792		1024		256
	126		252		5040		3360		20160		8064		16128		4608		2304		512

A274883 as a square array

1	1	1	3	2	10	5	35	14	126
2	4	6	24	20	120	70	560	252
4	12	24	120	120	840	560	5040
8	32	80	480	560	4480	3360
16	80	240	1680	2240	20160
32	192	672	5376	8064
64	448	1792	16128
128	1024	4608
256	2304
512

A274883 as an upper right triangle

1	1	1	3	2	10	5	35	14	126
	2	4	6	24	20	120	70	560	252
		4	12	24	120	120	840	560	5040
			8	32	80	480	560	4480	3360
				16	80	240	1680	2240	20160
					32	192	672	5376	8064
						64	448	1792	16128
							128	1024	4608
								256	2304
									512