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A143987
as a triangular array
1
-1
1
1
2
0
-1
3
0
-1
1
-4
0
4
1
-1
5
0
-10
-5
2
1
-6
0
20
15
-12
-9
-1
7
0
-35
-35
42
63
9
1
-8
0
56
70
-112
-252
-72
50
-1
9
0
-84
-126
252
756
324
-450
-267
1
-10
0
120
210
-504
-1890
-1080
2250
2670
413
A143987
as a square array
1
-1
1
-1
1
-1
1
-1
1
-1
1
1
2
3
-4
5
-6
7
-8
9
-10
0
0
0
0
0
0
0
0
0
-1
4
-10
20
-35
56
-84
120
1
-5
15
-35
70
-126
210
2
-12
42
-112
252
-504
-9
63
-252
756
-1890
9
-72
324
-1080
50
-450
2250
-267
2670
413
A143987
as an upper right triangle
1
-1
1
-1
1
-1
1
-1
1
-1
1
1
2
3
-4
5
-6
7
-8
9
-10
0
0
0
0
0
0
0
0
0
-1
4
-10
20
-35
56
-84
120
1
-5
15
-35
70
-126
210
2
-12
42
-112
252
-504
-9
63
-252
756
-1890
9
-72
324
-1080
50
-450
2250
-267
2670
413
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Last modified May 28 20:33 EDT 2024. Contains 372919 sequences. (Running on oeis4.)