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A261139 as a triangular array

1
00
001
0001
00121
000551
001102091
000217056141
00142231294126201
000857351407924246271
0011702290636360272400435351

A261139 as a square array

10000000000
0000000000
101010101
12510214285170
1520702317352290
195629414076363
1141269246027
1202462400
127435
135
1
10000000000
0000000000
101010101
12510214285170
1520702317352290
195629414076363
1141269246027
1202462400
127435
135
1