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A191737 as a triangular array

1
23
456
79108
1215171411
202529241913
34424940322216
5770826754372718
951171371129062453021
15919522918715010475503523
26532538231225017412584

A191737 as a square array

12471220345795159265
35915254270117195325
61017294982137229382
814244067112187312
1119325490150250
13223762104174
16274575125
18305084
2135
23
12471220345795159265
35915254270117195325
61017294982137229382
814244067112187312
1119325490150250
13223762104174
16274575125
18305084
2135
23