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A209687 as a triangular array

1
02
015
01512
0161829
017265870
0183598175169
01945149339507408
01105621257411081428985
0111682888942066347639402378
01128137813143492707410572

A209687 as a square array

10000000000
2111111111
556789101112
1218263545566881
295898149212288378
701753395748941314
169507110820663492
408142834767074
985394010572
2378

A209687 as an upper right triangle

10000000000
2111111111
556789101112
1218263545566881
295898149212288378
701753395748941314
169507110820663492
408142834767074
985394010572
2378

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Last modified November 20 02:34 EST 2019. Contains 329323 sequences. (Running on oeis4.)