A072737 - OEIS

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A072737 as a triangular array

														0
													0		2
												0		1		4
											0		0		3		6
										0		0		1		5		8
									0		0		1		3		7		10
								0		0		1		2		5		9		12
							0		0		1		1		4		7		11		14
						0		0		1		1		2		6		9		13		16
					0		0		1		1		2		4		8		11		15		18
				0		0		1		1		2		3		6		10		13		17		20
			0		0		1		1		2		2		5		8		12		15		19		22
		0		0		1		1		2		2		3		7		10		14		17		21		24
	0		0

A072737 as a square array

0	0	0	0	0	0	0	0	0	0	0	0	0	0
2	1	0	0	0	0	0	0	0	0	0	0	0
4	3	1	1	1	1	1	1	1	1	1
6	5	3	2	1	1	1	1	1	1
8	7	5	4	2	2	2	2	2
10	9	7	6	4	3	2	2
12	11	9	8	6	5	3
14	13	11	10	8	7
16	15	13	12	10
18	17	15	14
20	19	17
22	21
24

A072737 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0	0	0
	2	1	0	0	0	0	0	0	0	0	0	0	0
		4	3	1	1	1	1	1	1	1	1	1
			6	5	3	2	1	1	1	1	1	1
				8	7	5	4	2	2	2	2	2
					10	9	7	6	4	3	2	2
						12	11	9	8	6	5	3
							14	13	11	10	8	7
								16	15	13	12	10
									18	17	15	14
										20	19	17
											22	21
												24