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A137855 as a triangular array

1
11
121
1241
12581
12514161
1251541321
1251551122641
12515521873651281
125155220271510942561
1251552203855279532815121

A137855 as a square array

11111111111
1222222222
145555555
18141515151515
1164151525252
132122187202203
164365715855
112810942795
12563281
1512
1
11111111111
1222222222
145555555
18141515151515
1164151525252
132122187202203
164365715855
112810942795
12563281
1512
1