A257616 - OEIS

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A257616 as a triangular array

								1
							2		2
						4		32		4
					8		312		312		8
				16		2656		8736		2656		16
			32		21664		175424		175424		21664		32
		64		174336		3019200		7016960		3019200		174336		64
	128		1397120		47847552		218838400		218838400		47847552		1397120		128
256		11182592		722956288		5907889664		11379596800		5907889664		722956288		11182592		256

A257616 as a square array

1	2	4	8	16	32	64	128	256
2	32	312	2656	21664	174336	1397120	11182592
4	312	8736	175424	3019200	47847552	722956288
8	2656	175424	7016960	218838400	5907889664
16	21664	3019200	218838400	11379596800
32	174336	47847552	5907889664
64	1397120	722956288
128	11182592
256

A257616 as an upper right triangle

1	2	4	8	16	32	64	128	256
	2	32	312	2656	21664	174336	1397120	11182592
		4	312	8736	175424	3019200	47847552	722956288
			8	2656	175424	7016960	218838400	5907889664
				16	21664	3019200	218838400	11379596800
					32	174336	47847552	5907889664
						64	1397120	722956288
							128	11182592
								256