A143518 - OEIS

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A143518 as a triangular array

											0
										0		1
									0		0		1
								0		-1		0		0
							0		0		0		0		1
						0		-1		-1		0		0		0
					0		0		0		0		0		0		1
				0		0		0		0		0		0		0		0
			0		0		-1		0		0		0		0		0		0
		0		-1		0		0		-1		0		0		0		0		0
	0		0		0		0		0		0		0		0		0		0		1

A143518 as a square array

0	0	0	0	0	0	0	0	0	0	0
1	0	-1	0	-1	0	0	0	-1	0
1	0	0	-1	0	0	-1	0	0
0	0	0	0	0	0	0	0
1	0	0	0	0	-1	0
0	0	0	0	0	0
1	0	0	0	0
0	0	0	0
0	0	0
0	0
1

A143518 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0
	1	0	-1	0	-1	0	0	0	-1	0
		1	0	0	-1	0	0	-1	0	0
			0	0	0	0	0	0	0	0
				1	0	0	0	0	-1	0
					0	0	0	0	0	0
						1	0	0	0	0
							0	0	0	0
								0	0	0
									0	0
										1