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A186851 as a triangular array

9
1616
254816
369610416
4916032820816
6424066497640016
8133611122576280080016
1004481672505693288352128016
1215762344832021480344482166422080
1447203128123683961691328

A186851 as a square array

9162536496481100121144
164896160240336448576720
161043286641112167223443128
1620897625765056832012368
16400280093282148039616
1680083523444891328
16128021664
162208
0
9162536496481100121144
164896160240336448576720
161043286641112167223443128
1620897625765056832012368
16400280093282148039616
1680083523444891328
16128021664
162208
0