A220751 - OEIS

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A220751 as a triangular array

										1
									2		2
								4		8		4
							8		38		38		8
						16		176		395		176		16
					32		816		3778		3778		816		32
				64		3616		32178		65084		32178		3616		64
			128		15362		261356		1048014		1048014		261356		15362		128
		256		63484		2096110		16776688		33553757		16776688		2096110		63484		256
	512

A220751 as a square array

1	2	4	8	16	32	64	128	256	512
2	8	38	176	816	3616	15362	63484
4	38	395	3778	32178	261356	2096110
8	176	3778	65084	1048014	16776688
16	816	32178	1048014	33553757
32	3616	261356	16776688
64	15362	2096110
128	63484
256

A220751 as an upper right triangle

1	2	4	8	16	32	64	128	256	512
	2	8	38	176	816	3616	15362	63484
		4	38	395	3778	32178	261356	2096110
			8	176	3778	65084	1048014	16776688
				16	816	32178	1048014	33553757
					32	3616	261356	16776688
						64	15362	2096110
							128	63484
								256