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A237340 as a triangular array

256
19801980
150824122015082
120808821234821234120808
972356176278203960929417627820972356
7935194380945760213718103821371810383809457607935194
650887368406402902114598315886

A237340 as a square array

256198015082120808972356793519465088736
198041220821234176278203809457608406402902
15082821234396092942137181038114598315886
120808176278202137181038
972356380945760
7935194

A237340 as an upper right triangle

256198015082120808972356793519465088736
198041220821234176278203809457608406402902
15082821234396092942137181038114598315886
120808176278202137181038
972356380945760
7935194

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Last modified October 28 16:09 EDT 2021. Contains 348329 sequences. (Running on oeis4.)