A117449 - OEIS

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A117449 as a triangular array

													1
												0		1
											0		-1		1
										0		-1		1		1
									0		1		-1		0		1
								0		-2		2		0		-1		1
							0		-1		1		0		-1		1		1
						0		1		-1		0		1		-1		0		1
					0		-2		2		0		-2		2		0		-1		1
				0		-1		1		0		-1		1		0		-1		1		1
			0		1		-1		0		1		-1		0		1		-1		0		1
		0		-2		2		0		-2		2		0		-2		2		0		-1		1
	0		-1		1		0		-1		1		0		-1		1		0		-1		1		1

A117449 as a square array

1	0	0	0	0	0	0	0	0	0	0	0	0
1	-1	-1	1	-2	-1	1	-2	-1	1	-2	-1
1	1	-1	2	1	-1	2	1	-1	2	1
1	0	0	0	0	0	0	0	0	0
1	-1	-1	1	-2	-1	1	-2	-1
1	1	-1	2	1	-1	2	1
1	0	0	0	0	0	0
1	-1	-1	1	-2	-1
1	1	-1	2	1
1	0	0	0
1	-1	-1
1	1
1

A117449 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0	0	0
	1	-1	-1	1	-2	-1	1	-2	-1	1	-2	-1
		1	1	-1	2	1	-1	2	1	-1	2	1
			1	0	0	0	0	0	0	0	0	0
				1	-1	-1	1	-2	-1	1	-2	-1
					1	1	-1	2	1	-1	2	1
						1	0	0	0	0	0	0
							1	-1	-1	1	-2	-1
								1	1	-1	2	1
									1	0	0	0
										1	-1	-1
											1	1
												1