A101080 - OEIS

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A101080 as a triangular array

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

A101080 as a square array

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

A101080 as an upper right triangle

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