A275731 - OEIS

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A275731 as a triangular array

															0
														0		0
													2		1		0
												2		0		1		0
											4		1		2		1		0
										4		0		3		2		1		0
									6		1		4		3		2		1		0
								6		6		5		4		3		2		1		0
							8		7		0		5		4		3		2		1		0
						8		6		1		6		5		4		3		2		1		0
					10		7		2		7		6		5		4		3		2		1		0
				10		6		3		8		7		6		5		4		3		2		1		0
			12		7		4		9		8		7		6		5		4		3		2		1		0
		12		12		5		10		9		8		7		6		5		4		3		2		1		0
	14		13		0		11		10		9		8		7		6		5		4		3		2		1		0

A275731 as a square array

0	0	2	2	4	4	6	6	8	8	10	10	12	12	14
0	1	0	1	0	1	6	7	6	7	6	7	12	13
0	1	2	3	4	5	0	1	2	3	4	5	0
0	1	2	3	4	5	6	7	8	9	10	11
0	1	2	3	4	5	6	7	8	9	10
0	1	2	3	4	5	6	7	8	9
0	1	2	3	4	5	6	7	8
0	1	2	3	4	5	6	7
0	1	2	3	4	5	6
0	1	2	3	4	5
0	1	2	3	4
0	1	2	3
0	1	2
0	1
0

A275731 as an upper right triangle

0	0	2	2	4	4	6	6	8	8	10	10	12	12	14
	0	1	0	1	0	1	6	7	6	7	6	7	12	13
		0	1	2	3	4	5	0	1	2	3	4	5	0
			0	1	2	3	4	5	6	7	8	9	10	11
				0	1	2	3	4	5	6	7	8	9	10
					0	1	2	3	4	5	6	7	8	9
						0	1	2	3	4	5	6	7	8
							0	1	2	3	4	5	6	7
								0	1	2	3	4	5	6
									0	1	2	3	4	5
										0	1	2	3	4
											0	1	2	3
												0	1	2
													0	1
														0