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A260544 as a triangular array

40
7575
193131193
337310310337
582566774566582
1350976141114119761350
2732222922262775222622292732
50374296559243984398559242965037
105497576113701094991841094911370757610549

A260544 as a square array

407519333758213502732503710549
75131310566976222942967576
19331077414112226559211370
33756614112775439810949
582976222643989184
13502229559210949
2732429611370
50377576
10549

A260544 as an upper right triangle

407519333758213502732503710549
75131310566976222942967576
19331077414112226559211370
33756614112775439810949
582976222643989184
13502229559210949
2732429611370
50377576
10549

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Last modified August 19 18:30 EDT 2022. Contains 356229 sequences. (Running on oeis4.)