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A350512 as a triangular array

1
11
141
1771
11018101
1133434131
116558055161
1198115515581191
122112266350266112221
125148420686686420148251
128189624121815121218624189281

A350512 as a square array

11111111111
14710131619222528
1718345581112148189
1103480155266420624
113551553506861218
116812666861512
1191124201218
122148624
125189
128
1
11111111111
14710131619222528
1718345581112148189
1103480155266420624
113551553506861218
116812666861512
1191124201218
122148624
125189
128
1