A054523 - OEIS

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A054523 as a triangular array

														1
													1		1
												2		0		1
											2		1		0		1
										4		0		0		0		1
									2		2		1		0		0		1
								6		0		0		0		0		0		1
							4		2		0		1		0		0		0		1
						6		0		2		0		0		0		0		0		1
					4		4		0		0		1		0		0		0		0		1
				10		0		0		0		0		0		0		0		0		0		1
			4		2		2		2		0		1		0		0		0		0		0		1
		12		0		0		0		0		0		0		0		0		0		0		0		1
	6		6

A054523 as a square array

1	1	2	2	4	2	6	4	6	4	10	4	12	6
1	0	1	0	2	0	2	0	4	0	2	0	6
1	0	0	1	0	0	2	0	0	2	0
1	0	0	0	1	0	0	0	2	0
1	0	0	0	0	1	0	0	0
1	0	0	0	0	0	1	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

A054523 as an upper right triangle

1	1	2	2	4	2	6	4	6	4	10	4	12	6
	1	0	1	0	2	0	2	0	4	0	2	0	6
		1	0	0	1	0	0	2	0	0	2	0
			1	0	0	0	1	0	0	0	2	0
				1	0	0	0	0	1	0	0	0
					1	0	0	0	0	0	1	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