A128408 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A128408 as a triangular array

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

A128408 as a square array

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

A128408 as an upper right triangle

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