A272098 - OEIS

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A272098 as a triangular array

										1
									2		0
								4		1		0
							8		7		1		0
						16		33		15		1		0
					32		131		131		31		1		0
				64		473		883		473		63		1		0
			128		1611		5111		5111		1611		127		1		0
		256		5281		26799		44929		26799		5281		255		1		0
	512		16867		131275		344551		344551		131275		16867		511		1		0

A272098 as a square array

1	2	4	8	16	32	64	128	256	512
0	1	7	33	131	473	1611	5281	16867
0	1	15	131	883	5111	26799	131275
0	1	31	473	5111	44929	344551
0	1	63	1611	26799	344551
0	1	127	5281	131275
0	1	255	16867
0	1	511
0	1
0

A272098 as an upper right triangle

1	2	4	8	16	32	64	128	256	512
	0	1	7	33	131	473	1611	5281	16867
		0	1	15	131	883	5111	26799	131275
			0	1	31	473	5111	44929	344551
				0	1	63	1611	26799	344551
					0	1	127	5281	131275
						0	1	255	16867
							0	1	511
								0	1
									0