A166555 - OEIS

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A166555 as a triangular array

													1
												1		2
											1		0		4
										1		2		4		8
									1		0		0		0		16
								1		2		0		0		16		32
							1		0		4		0		16		0		64
						1		2		4		8		16		32		64		128
					1		0		0		0		0		0		0		0		256
				1		2		0		0		0		0		0		0		256		512
			1		0		4		0		0		0		0		0		256		0		1024
		1		2		4		8		0		0		0		0		256		512		1024		2048
	1		0		0		0		16		0		0		0		256		0		0		0		4096

A166555 as a square array

1	1	1	1	1	1	1	1	1	1	1	1	1
2	0	2	0	2	0	2	0	2	0	2	0
4	4	0	0	4	4	0	0	4	4	0
8	0	0	0	8	0	0	0	8	0
16	16	16	16	0	0	0	0	16
32	0	32	0	0	0	0	0
64	64	0	0	0	0	0
128	0	0	0	0	0
256	256	256	256	256
512	0	512	0
1024	1024	0
2048	0
4096

A166555 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1	1
	2	0	2	0	2	0	2	0	2	0	2	0
		4	4	0	0	4	4	0	0	4	4	0
			8	0	0	0	8	0	0	0	8	0
				16	16	16	16	0	0	0	0	16
					32	0	32	0	0	0	0	0
						64	64	0	0	0	0	0
							128	0	0	0	0	0
								256	256	256	256	256
									512	0	512	0
										1024	1024	0
											2048	0
												4096