A109246 - OEIS

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A109246 as a triangular array

														1
													-1		1
												-2		-2		1
											0		-1		-3		1
										0		2		1		-4		1
									0		0		3		4		-5		1
								0		0		-2		2		8		-6		1
							0		0		0		-5		-2		13		-7		1
						0		0		0		2		-7		-10		19		-8		1
					0		0		0		0		7		-5		-23		26		-9		1
				0		0		0		0		-2		14		5		-42		34		-10		1
			0		0		0		0		0		-9		19		28		-68		43		-11		1
		0		0		0		0		0		2		-23		14		70		-102		53		-12		1
	0		0		0		0		0		0		11		-42		-14

A109246 as a square array

1	-1	-2	0	0	0	0	0	0	0	0	0	0	0
1	-2	-1	2	0	0	0	0	0	0	0	0	0
1	-3	1	3	-2	0	0	0	0	0	0	0
1	-4	4	2	-5	2	0	0	0	0	0
1	-5	8	-2	-7	7	-2	0	0	0
1	-6	13	-10	-5	14	-9	2	0
1	-7	19	-23	5	19	-23	11
1	-8	26	-42	28	14	-42
1	-9	34	-68	70	-14
1	-10	43	-102
1	-11	53
1	-12
1

A109246 as an upper right triangle

1	-1	-2	0	0	0	0	0	0	0	0	0	0	0
	1	-2	-1	2	0	0	0	0	0	0	0	0	0
		1	-3	1	3	-2	0	0	0	0	0	0	0
			1	-4	4	2	-5	2	0	0	0	0	0
				1	-5	8	-2	-7	7	-2	0	0	0
					1	-6	13	-10	-5	14	-9	2	0
						1	-7	19	-23	5	19	-23	11
							1	-8	26	-42	28	14	-42
								1	-9	34	-68	70	-14
									1	-10	43	-102
										1	-11	53
											1	-12
												1