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A394813 as a triangular array

1
21
3101
442421
51204411701
6275250842246821
754610010457603903927301
898031668307450784212355446109221
916328496615089888666515130213203215397436901

A394813 as a square array

123456789
110421202755469801632
1424412508100103166884966
11704224457603074501508988
1682390397842128666515
1273035544613021320
1109223215397
143690
1
123456789
110421202755469801632
1424412508100103166884966
11704224457603074501508988
1682390397842128666515
1273035544613021320
1109223215397
143690
1