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A226246 as a triangular array

1
24
367
481010
58111413
61014141616
7121316192019
814162020222422
91417182122252825
10162020262428303028
1118212225262930333431

A226246 as a square array

1234567891011
4688101214141618
71011141316172021
1014141620182022
13161920212625
162022222426
1924252829
22283030
253033
2834
31
1234567891011
4688101214141618
71011141316172021
1014141620182022
13161920212625
162022222426
1924252829
22283030
253033
2834
31