A187637 - OEIS

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A187637 as a triangular array

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

A187637 as a square array

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

A187637 as an upper right triangle

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