A293473 - OEIS

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A293473 as a triangular array

								1
							1		2
						4		6		4
					12		30		24		8
				52		144		156		80		16
			240		760		1020		680		240		32
		1188		4440		6720		5640		2640		672		64
	6804		26712		47040		45640		26880		9408		1792		128
38960		175392		338016		376320		261520		115584		31360		4608		256

A293473 as a square array

1	1	4	12	52	240	1188	6804	38960
2	6	30	144	760	4440	26712	175392
4	24	156	1020	6720	47040	338016
8	80	680	5640	45640	376320
16	240	2640	26880	261520
32	672	9408	115584
64	1792	31360
128	4608
256

A293473 as an upper right triangle

1	1	4	12	52	240	1188	6804	38960
	2	6	30	144	760	4440	26712	175392
		4	24	156	1020	6720	47040	338016
			8	80	680	5640	45640	376320
				16	240	2640	26880	261520
					32	672	9408	115584
						64	1792	31360
							128	4608
								256