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A071201 as a triangular array

1
11
121
1221
13531
135531
14714741
141214141241
15122342231251
1515304242301551
1622556613266552261
1622559913213299552261
172676143227429227143762671

A071201 as a square array

1111111111111
122334455667
12557121215222226
13514142330555576
1371442426699143
14122342132132227
14123066132429
15155599227
152255143
162276
1626
17
1
1111111111111
122334455667
12557121215222226
13514142330555576
1371442426699143
14122342132132227
14123066132429
15155599227
152255143
162276
1626
17
1