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A225246 as a triangular array

1
31
651
91271
14221891
18363424111
2553564630131
307483765836151
3698116113967042171
421261541581431168248191
531581982102001731369454211
59193248270266

A225246 as a square array

13691418253036425359
15122236537498126158193
1718345683116154198248
19244676113158210270
111305896143200266
1133670116173
1154282136
1174894
11954
121
1
13691418253036425359
15122236537498126158193
1718345683116154198248
19244676113158210270
111305896143200266
1133670116173
1154282136
1174894
11954
121
1