A135387 - OEIS

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A135387 as a triangular array

								2
							1		2
						0		1		2
					0		0		1		2
				0		0		0		1		2
			0		0		0		0		1		2
		0		0		0		0		0		1		2
	0		0		0		0		0		0		1		2
0		0		0		0		0		0		0		1		2

A135387 as a square array

2	1	0	0	0	0	0	0	0
2	1	0	0	0	0	0	0
2	1	0	0	0	0	0
2	1	0	0	0	0
2	1	0	0	0
2	1	0	0
2	1	0
2	1
2

A135387 as an upper right triangle

2	1	0	0	0	0	0	0	0
	2	1	0	0	0	0	0	0
		2	1	0	0	0	0	0
			2	1	0	0	0	0
				2	1	0	0	0
					2	1	0	0
						2	1	0
							2	1
								2