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A306684 as a triangular array

1
11
111
1121
11341
114791
1151021211
116133761511
11716571211911271
11819812014516033231
11922109301861163919618351

A306684 as a square array

11111111111
1111111111
123456789
1471013161922
1921375781109
12161121201301
151191451861
11276031639
13231961
1835
1
11111111111
1111111111
123456789
1471013161922
1921375781109
12161121201301
151191451861
11276031639
13231961
1835
1