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A120258 as a triangular array

1
11
121
1631
1202041
1701755051
1252176498010561
19241940424696411619671
134322265127318082328481411233681
1128702760615242934121681851616465684158054091

A120258 as a square array

1111111111
1262070252924343212870
13201751764194042265122760615
14509802469673180824293412
15105411623284816818516
16196141121646568
1733641580
18540
19
1
1111111111
1262070252924343212870
13201751764194042265122760615
14509802469673180824293412
15105411623284816818516
16196141121646568
1733641580
18540
19
1