A212210 - OEIS

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A212210 as a triangular array

														-1
													-1		0
												0		0		1
											-1		0		0		0
										0		0		1		1		2
									-1		0		1		1		1		1
								0		1		2		1		2		1		2
							0		1		1		1		1		1		2		2
						0		0		1		0		1		1		2		1		1
					-1		0		0		0		1		1		1		1		0		0
				0		0		1		1		2		1		2		1		1		1		2
			-1		0		1		1		1		1		1		1		1		1		1		1
		0		1		2		1		2		1		2		2		2		1		2		2		3
	0		1		1		1		1		1		2		2		1		1		2		2		3		3

A212210 as a square array

-1	-1	0	-1	0	-1	0	0	0	-1	0	-1	0	0
0	0	0	0	0	1	1	0	0	0	0	1	1
1	0	1	1	2	1	1	0	1	1	2	1
0	1	1	1	1	0	0	1	1	1	1
2	1	2	1	1	1	2	1	2	1
1	1	1	1	1	1	1	1	1
2	2	2	1	2	1	2	2
2	1	1	1	1	2	2
1	0	1	1	2	1
0	1	1	1	1
2	1	2	2
1	2	2
3	3
3

A212210 as an upper right triangle

-1	-1	0	-1	0	-1	0	0	0	-1	0	-1	0	0
	0	0	0	0	0	1	1	0	0	0	0	1	1
		1	0	1	1	2	1	1	0	1	1	2	1
			0	1	1	1	1	0	0	1	1	1	1
				2	1	2	1	1	1	2	1	2	1
					1	1	1	1	1	1	1	1	1
						2	2	2	1	2	1	2	2
							2	1	1	1	1	2	2
								1	0	1	1	2	1
									0	1	1	1	1
										2	1	2	2
											1	2	2
												3	3
													3