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A131774 as a triangular array

1
21
121
2041
12341
2-18261
1248761
2-212020681
1241215201381
2-316-64294012101

A131774 as a square array

1212121212
1202-12-22-3
1438412416
1428012-6
167201542
166209
181340
1812
110
1

A131774 as an upper right triangle

1212121212
1202-12-22-3
1438412416
1428012-6
167201542
166209
181340
1812
110
1

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Last modified October 22 15:45 EDT 2018. Contains 316490 sequences. (Running on oeis4.)