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A221028 as a triangular array

1
11
333
4664
46764
6101111106
711141614117
71317202017137
9161921242119169
10162427303027241610
1020273135333531272010
122130334042424033302112
13

A221028 as a square array

11344677910101213
136610111316162021
36711141719242730
4611162021273133
410142024303540
6111721303342
71319273542
716243140
9162733
102030
1021
12
11344677910101213
136610111316162021
36711141719242730
4611162021273133
410142024303540
6111721303342
71319273542
716243140
9162733
102030
1021
12