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A259325 as a triangular array

1
13
137
13813
1381622
138173034
13817335050
1381734588070
1381734619712095

A259325 as a square array

111111111
33333333
7888888
131617171717
2230333434
34505861
508097
70120
95
111111111
33333333
7888888
131617171717
2230333434
34505861
508097
70120
95