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A340242 as a triangular array

1
13
158
172120
19408147
11165208295107
1139642510211037238
115133756262148313555520
117176122556111556922276119611121
1192251856106274009190085100768396672391

A340242 as a square array

1111111111
35791113151719
821406596133176225
208120842575612251856
4729510212621561110627
107103748311556940091
23835552227690085
52011961100768
112139667
2391
1111111111
35791113151719
821406596133176225
208120842575612251856
4729510212621561110627
107103748311556940091
23835552227690085
52011961100768
112139667
2391