A285867 - OEIS

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A285867 as a triangular array

											1
										0		1
									0		1		3
								0		1		7		12
							0		1		15		50		60
						0		1		31		180		390		360
					0		1		63		602		2100		3360		2520
				0		1		127		1932		10206		25200		31920		20160
			0		1		255		6050		46620		166824		317520		332640		181440
		0		1		511		18660		204630		1020600		2739240		4233600		3780000		1814400
	0		1		1023		57002		874500		5921520		21538440		46070640		59875200		46569600		19958400

A285867 as a square array

1	0	0	0	0	0	0	0	0	0	0
1	1	1	1	1	1	1	1	1	1
3	7	15	31	63	127	255	511	1023
12	50	180	602	1932	6050	18660	57002
60	390	2100	10206	46620	204630	874500
360	3360	25200	166824	1020600	5921520
2520	31920	317520	2739240	21538440
20160	332640	4233600	46070640
181440	3780000	59875200
1814400	46569600
19958400

A285867 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0
	1	1	1	1	1	1	1	1	1	1
		3	7	15	31	63	127	255	511	1023
			12	50	180	602	1932	6050	18660	57002
				60	390	2100	10206	46620	204630	874500
					360	3360	25200	166824	1020600	5921520
						2520	31920	317520	2739240	21538440
							20160	332640	4233600	46070640
								181440	3780000	59875200
									1814400	46569600
										19958400