A127570 - OEIS

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A127570 as a triangular array

													1
												1		3
											1		0		4
										1		3		0		7
									1		0		0		0		6
								1		3		4		0		0		12
							1		0		0		0		0		0		8
						1		3		0		7		0		0		0		15
					1		0		4		0		0		0		0		0		13
				1		3		0		0		6		0		0		0		0		18
			1		0		0		0		0		0		0		0		0		0		12
		1		3		4		7		0		12		0		0		0		0		0		28
	1

A127570 as a square array

1	1	1	1	1	1	1	1	1	1	1	1	1
3	0	3	0	3	0	3	0	3	0	3
4	0	0	4	0	0	4	0	0	4
7	0	0	0	7	0	0	0	7
6	0	0	0	0	6	0	0
12	0	0	0	0	0	12
8	0	0	0	0	0
15	0	0	0	0
13	0	0	0
18	0	0
12	0
28

A127570 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1	1
	3	0	3	0	3	0	3	0	3	0	3
		4	0	0	4	0	0	4	0	0	4
			7	0	0	0	7	0	0	0	7
				6	0	0	0	0	6	0	0
					12	0	0	0	0	0	12
						8	0	0	0	0	0
							15	0	0	0	0
								13	0	0	0
									18	0	0
										12	0
											28