A261684 - OEIS

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A261684 as a triangular array

													0
												0		0
											0		1		0
										0		1		1		0
									0		1		2		1		0
								0		1		2		2		1		0
							0		1		2		3		2		1		0
						0		1		2		3		3		2		1		0
					0		1		2		3		4		3		2		1		0
				0		1		2		3		4		4		3		2		1		0
			0		1		2		3		4		5		4		3		2		1		0
		0		10		2		3		4		5		5		4		3		2		10		0
	0		11		10		3		4		5		6		5		4		3		10		11		0

A261684 as a square array

0	0	0	0	0	0	0	0	0	0	0	0	0
0	1	1	1	1	1	1	1	1	1	10	11
0	1	2	2	2	2	2	2	2	2	10
0	1	2	3	3	3	3	3	3	3
0	1	2	3	4	4	4	4	4
0	1	2	3	4	5	5	5
0	1	2	3	4	5	6
0	1	2	3	4	5
0	1	2	3	4
0	1	2	3
0	10	10
0	11
0

A261684 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0	0
	0	1	1	1	1	1	1	1	1	1	10	11
		0	1	2	2	2	2	2	2	2	2	10
			0	1	2	3	3	3	3	3	3	3
				0	1	2	3	4	4	4	4	4
					0	1	2	3	4	5	5	5
						0	1	2	3	4	5	6
							0	1	2	3	4	5
								0	1	2	3	4
									0	1	2	3
										0	10	10
											0	11
												0