A127571 - OEIS

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A127571 as a triangular array

									1
								1		3
							2		0		4
						2		3		0		7
					4		0		0		0		6
				2		6		4		0		0		12
			6		0		0		0		0		0		8
		4		6		0		7		0		0		0		15
	6		0		8		0		0		0		0		0		13
4		12		0		0		6		0		0		0		0		18

A127571 as a square array

1	1	2	2	4	2	6	4	6	4
3	0	3	0	6	0	6	0	12
4	0	0	4	0	0	8	0
7	0	0	0	7	0	0
6	0	0	0	0	6
12	0	0	0	0
8	0	0	0
15	0	0
13	0
18

A127571 as an upper right triangle

1	1	2	2	4	2	6	4	6	4
	3	0	3	0	6	0	6	0	12
		4	0	0	4	0	0	8	0
			7	0	0	0	7	0	0
				6	0	0	0	0	6
					12	0	0	0	0
						8	0	0	0
							15	0	0
								13	0
									18

									1
								1		3
							2		0		4
						2		3		0		7
					4		0		0		0		6
				2		6		4		0		0		12
			6		0		0		0		0		0		8
		4		6		0		7		0		0		0		15
	6		0		8		0		0		0		0		0		13
4		12		0		0		6		0		0		0		0		18

1	1	2	2	4	2	6	4	6	4
3	0	3	0	6	0	6	0	12
4	0	0	4	0	0	8	0
7	0	0	0	7	0	0
6	0	0	0	0	6
12	0	0	0	0
8	0	0	0
15	0	0
13	0
18

1	1	2	2	4	2	6	4	6	4
	3	0	3	0	6	0	6	0	12
		4	0	0	4	0	0	8	0
			7	0	0	0	7	0	0
				6	0	0	0	0	6
					12	0	0	0	0
						8	0	0	0
							15	0	0
								13	0
									18

									1
								1		3
							2		0		4
						2		3		0		7
					4		0		0		0		6
				2		6		4		0		0		12
			6		0		0		0		0		0		8
		4		6		0		7		0		0		0		15
	6		0		8		0		0		0		0		0		13
4		12		0		0		6		0		0		0		0		18

1	1	2	2	4	2	6	4	6	4
3	0	3	0	6	0	6	0	12
4	0	0	4	0	0	8	0
7	0	0	0	7	0	0
6	0	0	0	0	6
12	0	0	0	0
8	0	0	0
15	0	0
13	0
18

1	1	2	2	4	2	6	4	6	4
	3	0	3	0	6	0	6	0	12
		4	0	0	4	0	0	8	0
			7	0	0	0	7	0	0
				6	0	0	0	0	6
					12	0	0	0	0
						8	0	0	0
							15	0	0
								13	0
									18

									1
								1		3
							2		0		4
						2		3		0		7
					4		0		0		0		6
				2		6		4		0		0		12
			6		0		0		0		0		0		8
		4		6		0		7		0		0		0		15
	6		0		8		0		0		0		0		0		13
4		12		0		0		6		0		0		0		0		18

1	1	2	2	4	2	6	4	6	4
3	0	3	0	6	0	6	0	12
4	0	0	4	0	0	8	0
7	0	0	0	7	0	0
6	0	0	0	0	6
12	0	0	0	0
8	0	0	0
15	0	0
13	0
18

1	1	2	2	4	2	6	4	6	4
	3	0	3	0	6	0	6	0	12
		4	0	0	4	0	0	8	0
			7	0	0	0	7	0	0
				6	0	0	0	0	6
					12	0	0	0	0
						8	0	0	0
							15	0	0
								13	0
									18