A240857 - OEIS

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A240857 as a triangular array

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

A240857 as a square array

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

A240857 as an upper right triangle

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