A221255 - OEIS

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A221255 as a triangular array

										0
									1		0
								2		4		0
							4		8		16		0
						8		81		30		64		0
					16		392		2116		112		256		0
				32		2500		22268		58081		418		1024		0
			64		14112		488601		1319409		1612900		1560		4096		0
		128		83521		7356420		103489929		78633756		44903401		5822		16384		0
	256		484128		132273001

A221255 as a square array

0	1	2	4	8	16	32	64	128	256
0	4	8	81	392	2500	14112	83521	484128
0	16	30	2116	22268	488601	7356420	132273001
0	64	112	58081	1319409	103489929
0	256	418	1612900	78633756
0	1024	1560	44903401
0	4096	5822
0	16384
0

A221255 as an upper right triangle

0	1	2	4	8	16	32	64	128	256
	0	4	8	81	392	2500	14112	83521	484128
		0	16	30	2116	22268	488601	7356420	132273001
			0	64	112	58081	1319409	103489929
				0	256	418	1612900	78633756
					0	1024	1560	44903401
						0	4096	5822
							0	16384
								0