A130556 - OEIS

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A130556 as a triangular array

								1
							11		1
						111		1		11
					1111		11		1		111
				11111		111		1		11		1111
			111111		1111		11		1		111		11111
		1111111		11111		111		1		11		1111		111111
	11111111		111111		1111		11		1		111		11111		1111111

A130556 as a square array

1	11	111	1111	11111	111111	1111111	11111111
1	1	11	111	1111	11111	111111
11	1	1	11	111	1111
111	11	1	1	11
1111	111	11	1
11111	1111	111
111111	11111
1111111

A130556 as an upper right triangle

1	11	111	1111	11111	111111	1111111	11111111
	1	1	11	111	1111	11111	111111
		11	1	1	11	111	1111
			111	11	1	1	11
				1111	111	11	1
					11111	1111	111
						111111	11111
							1111111