A167271 - OEIS

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A167271 as a triangular array

													1
												1		1
											1		0		1
										1		2		0		1
									1		0		0		0		1
								1		3		1		0		0		1
							1		0		0		0		0		0		1
						1		4		0		3		0		0		0		1
					1		0		1		0		0		0		0		0		1
				1		5		0		0		1		0		0		0		0		1
			1		0		0		0		0		0		0		0		0		0		1
		1		6		1		6		0		4		0		0		0		0		0		1
	1		0		0		0		0		0		0		0		0		0		0		0		1

A167271 as a square array

1	1	1	1	1	1	1	1	1	1	1	1	1
1	0	2	0	3	0	4	0	5	0	6	0
1	0	0	1	0	0	1	0	0	1	0
1	0	0	0	3	0	0	0	6	0
1	0	0	0	0	1	0	0	0
1	0	0	0	0	0	4	0
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

A167271 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1	1
	1	0	2	0	3	0	4	0	5	0	6	0
		1	0	0	1	0	0	1	0	0	1	0
			1	0	0	0	3	0	0	0	6	0
				1	0	0	0	0	1	0	0	0
					1	0	0	0	0	0	4	0
						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