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A131953 as a triangular array

1
42
454
10578
161171116
341713111932
64351917193564
130653723253567128
2561316741314167131256
51425713371494773131259512

A131953 as a square array

14410163464130256514
25511173565131257
47713193767133
8111117234171
161919253149
3235354147
64676773
128131131
256259
512
14410163464130256514
25511173565131257
47713193767133
8111117234171
161919253149
3235354147
64676773
128131131
256259
512