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A055898 as a triangular array

1
11
131
1651
1101671
115393191
1218110151111
12815027220976131
136256636696376106151
145410134019801496615141171
1556252600500050322850939181191
1

A055898 as a square array

111111111111
13610152128364555
15163981150256410625
173110127263613402600
195120969619805000
1117637614965032
1131066152850
115141939
117181
119
1
111111111111
13610152128364555
15163981150256410625
173110127263613402600
195120969619805000
1117637614965032
1131066152850
115141939
117181
119
1