A115513 - OEIS

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A115513 as a triangular array

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

A115513 as a square array

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

A115513 as an upper right triangle

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