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A181644 as a triangular array

1
11
211
6311
2211411
924617511
4262137924611
2150107539912232711
117085854217366517641811
6828234141126733878102724251911
423948211974786832407563731502

A181644 as a square array

1126229242621501170868282423948
11311462131075585434141211974
114177939921731267378683
11524122665387824075
1163217610276373
117412421502
11851
119
11
1
1126229242621501170868282423948
11311462131075585434141211974
114177939921731267378683
11524122665387824075
1163217610276373
117412421502
11851
119
11
1