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A298675 as a triangular array

1
2-1
32-2
472-1
5141821
623524722
73411019412321
8471985277243222-1
9623221154252527028432-2
107948822076726120981008422072-1
1198702384215127392025796537634577821

A298675 as a square array

1234567891011
-12714233447627998
-221852110198322488702
-1247194527115422073842
121237242525672615127
2232227021209839202
128431008457965
-12220737634
-225778
-12
1
1234567891011
-12714233447627998
-221852110198322488702
-1247194527115422073842
121237242525672615127
2232227021209839202
128431008457965
-12220737634
-225778
-12
1