A118508 - OEIS

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A118508 as a triangular array

													0
												2		0
											0		2		0
										1		3		1		0
									2		4		2		1		0
								0		0		4		3		2		0
							2		2		6		5		4		2		0
						3		3		7		6		5		3		1		0
					0		4		0		7		6		4		2		1		0
				2		0		2		0		8		6		4		3		2		0
			0		2		4		2		0		8		6		5		4		2		0
		1		3		5		3		1		9		7		6		5		3		1		0
	2		4		6		4		2

A118508 as a square array

0	2	0	1	2	0	2	3	0	2	0	1	2
0	2	3	4	0	2	3	4	0	2	3	4
0	1	2	4	6	7	0	2	4	5	6
0	1	3	5	6	7	0	2	3	4
0	2	4	5	6	8	0	1	2
0	2	3	4	6	8	9
0	1	2	4	6	7
0	1	3	5	6
0	2	4	5
0	2	3
0	1
0

A118508 as an upper right triangle

0	2	0	1	2	0	2	3	0	2	0	1	2
	0	2	3	4	0	2	3	4	0	2	3	4
		0	1	2	4	6	7	0	2	4	5	6
			0	1	3	5	6	7	0	2	3	4
				0	2	4	5	6	8	0	1	2
					0	2	3	4	6	8	9
						0	1	2	4	6	7
							0	1	3	5	6
								0	2	4	5
									0	2	3
										0	1
											0