A127751 - OEIS

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A127751 as a triangular array

												1
											0		4
										0		-4		7
									0		4		-7		10
								0		0		0		-10		13
							0		-4		7		0		-13		16
						0		0		0		0		0		-16		19
					0		4		-7		10		0		0		-19		22
				0		0		0		0		0		0		0		-22		25
			0		0		0		-10		13		0		0		0		-25		28
		0		0		0		0		0		0		0		0		0		-28		31
	0		-4		7		0		-13

A127751 as a square array

1	0	0	0	0	0	0	0	0	0	0	0
4	-4	4	0	-4	0	4	0	0	0	-4
7	-7	0	7	0	-7	0	0	0	7
10	-10	0	0	10	0	-10	0	0
13	-13	0	0	0	13	0	-13
16	-16	0	0	0	0
19	-19	0	0	0
22	-22	0	0
25	-25	0
28	-28
31

A127751 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0	0
	4	-4	4	0	-4	0	4	0	0	0	-4
		7	-7	0	7	0	-7	0	0	0	7
			10	-10	0	0	10	0	-10	0	0
				13	-13	0	0	0	13	0	-13
					16	-16	0	0	0	0
						19	-19	0	0	0
							22	-22	0	0
								25	-25	0
									28	-28
										31