A143442 - OEIS

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A143442 as a triangular array

											1
										2		-2
									3		-3		-3
								4		-4		-4		0
							5		-5		-5		0		-5
						6		-6		-6		0		-6		6
					7		-7		-7		0		-7		7		-7
				8		-8		-8		0		-8		8		-8		0
			9		-9		-9		0		-9		9		-9		0		0
		10		-10		-10		0		-10		10		-10		0		0		10
	11		-11		-11		0		-11		11		-11		0		0		11		-11

A143442 as a square array

1	2	3	4	5	6	7	8	9	10	11
-2	-3	-4	-5	-6	-7	-8	-9	-10	-11
-3	-4	-5	-6	-7	-8	-9	-10	-11
0	0	0	0	0	0	0	0
-5	-6	-7	-8	-9	-10	-11
6	7	8	9	10	11
-7	-8	-9	-10	-11
0	0	0	0
0	0	0
10	11
-11

A143442 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11
	-2	-3	-4	-5	-6	-7	-8	-9	-10	-11
		-3	-4	-5	-6	-7	-8	-9	-10	-11
			0	0	0	0	0	0	0	0
				-5	-6	-7	-8	-9	-10	-11
					6	7	8	9	10	11
						-7	-8	-9	-10	-11
							0	0	0	0
								0	0	0
									10	11
										-11