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A263294 as a triangular array

1
11
121
1541
191761
1197253101
136323501168141
175163958894163557211
1152920381786138923425961977291

A263294 as a square array

111111111
1259193675152
14177232316399203
1653501588981786
1101684163138923
11455742596
1211977
129
1
111111111
1259193675152
14177232316399203
1653501588981786
1101684163138923
11455742596
1211977
129
1