A181837 - OEIS

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A181837 as a triangular array

													0
												0		0
											0		0		0
										0		0		0		0
									0		0		0		0		0
								0		0		0		1		0		0
							0		0		0		0		0		0		0
						0		0		0		0		1		1		0		0
					0		0		0		1		0		1		0		0		0
				0		0		0		0		0		1		0		1		0		0
			0		0		0		0		0		0		0		1		0		0		0
		0		0		0		1		1		0		1		1		1		1		0		0
	0		0		0		0

A181837 as a square array

0	0	0	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0	0
0	0	1	0	0	1	0	0	1	0
0	0	0	1	0	0	0	1
0	0	1	1	1	0	0
0	0	0	0	0	1
0	0	1	1	1
0	0	0	1
0	0	1
0	0
0

A181837 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0	0
	0	0	0	0	0	0	0	0	0	0	0	0
		0	0	0	0	0	0	0	0	0	0	0
			0	0	1	0	0	1	0	0	1	0
				0	0	0	1	0	0	0	1
					0	0	1	1	1	0	0
						0	0	0	0	0	1
							0	0	1	1	1
								0	0	0	1
									0	0	1
										0	0
											0