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A216718 as a triangular array

1
11
501
20301
10214301
6277217301
44614688720301
36155345358210323301
32884928782439570412026301
331727226783137257543583413829301

A216718 as a square array

115201026274461361553288493317272
1031472468345328782267831
1031787582439537257
103201037045435
10323120834
10326138
10329
103
10
1
115201026274461361553288493317272
1031472468345328782267831
1031787582439537257
103201037045435
10323120834
10326138
10329
103
10
1