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A131336 as a triangular array

1
11
211
3321
54421
887531
1312129731
2121201714841
3433332926171141
555554504634251251

A131336 as a square array

11235813213455
1134812213355
124712203354
1259172950
137142646
1381734
141125
1412
15
1
11235813213455
1134812213355
124712203354
1259172950
137142646
1381734
141125
1412
15
1