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A257608 as a triangular array

1
11
1201
12192191
12218832222181
122217220222220222222171
122221650062471233243250062472222161
1222221510534062953053923553053923510534062922222151
12222221421236937761970076751439259903390197007675142123693776222222141

A257608 as a square array

111111111
120219221822217222216222221522222214
1219832222022250062471053406292123693776
122182202221233243253053923519700767514
122217500624753053923539259903390
122221610534062919700767514
122222152123693776
122222214
1

A257608 as an upper right triangle

111111111
120219221822217222216222221522222214
1219832222022250062471053406292123693776
122182202221233243253053923519700767514
122217500624753053923539259903390
122221610534062919700767514
122222152123693776
122222214
1

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Last modified March 29 01:25 EDT 2020. Contains 333104 sequences. (Running on oeis4.)