A156254 - OEIS

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A156254 as a triangular array

														1
													1		1
												1		0		1
											0		0		0		1
										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		1
						0		0		0		0		0		0		0		0		1
					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		1
		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

A156254 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
1	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
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
1

A156254 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
			1	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
							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
													1