A110242 - OEIS

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A110242 as a triangular array

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

A110242 as a square array

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

A110242 as an upper right triangle

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