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A296405 as a triangular array

1
11
141
1881
11724171
1468282461
11143164443161141
128911822868286811822891
1757456017783355611778345607571
11964175081105543687703687701105541750819641
1511867310

A296405 as a square array

11111111111
148174611428975719645118
182482316118245601750867310
11782444286817783110554
146316286835561368770
1114118217783368770
12894560110554
175717508
11964
1
11111111111
148174611428975719645118
182482316118245601750867310
11782444286817783110554
146316286835561368770
1114118217783368770
12894560110554
175717508
11964
1