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A078298 as a triangular array

1
23
185
8187
14811289
161128112811
1128164151213
128132011536151215
1256110241204813276817
256110241204813276813276819
13072171681327681245761

A078298 as a square array

1218116112812561
381481128125613072
5811281320110241
71281641102417168
912811536120481
1151212048132768
135121327681
1532768124576
17327681
19
1218116112812561
381481128125613072
5811281320110241
71281641102417168
912811536120481
1151212048132768
135121327681
1532768124576
17327681
19