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A100452 as a triangular array

1
34
789
13141516
1920212425
272830323536
39404244454849
4950515255606364
636466687072778081
798081848590919699100
91929396100102105112117120121

A100452 as a square array

1371319273949637991
481420284050648092
91521304251668193
1624324452688496
253545557085100
3648607290102
49637791105
648096112
8199117
100120
121
1371319273949637991
481420284050648092
91521304251668193
1624324452688496
253545557085100
3648607290102
49637791105
648096112
8199117
100120
121