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A131873 as a triangular array

1
84
1587
22121110
2916151413
362019181716
43242322212019
5028272625242322
573231302928272625
64363534333231302928

A131873 as a square array

181522293643505764
4812162024283236
711151923273135
10141822263034
131721252933
1620242832
19232731
222630
2529
28

A131873 as an upper right triangle

181522293643505764
4812162024283236
711151923273135
10141822263034
131721252933
1620242832
19232731
222630
2529
28

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Last modified April 16 02:41 EDT 2024. Contains 371696 sequences. (Running on oeis4.)