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A218288 as a triangular array

1
33
7157
15636315
3125551125531
61101940914091101961
12140733273965507327394073121
241162892619051048307104830726190516289241
4816515320952331677287733549827167728772095233

A218288 as a square array

137153161121241481
31563255101940731628965153
7635114091327392619052095233
15255409165507104830716772877
31101932739104830733549827
61407326190516772877
121162892095233
241
137153161121241481
31563255101940731628965153
7635114091327392619052095233
15255409165507104830716772877
31101932739104830733549827
61407326190516772877
121162892095233
241