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A174719 as a triangular array

1
11
1-71
1-51-511
1-239-399-2391
1-967-2177-2177-9671
1-3639-10191-13831-10191-36391
1-13115-43719-74323-74323-43719-131151
1-45919-177119-360799-452639-360799-177119-459191

A174719 as a square array

111111111
1-7-51-239-967-3639-13115-45919
1-51-399-2177-10191-43719-177119
1-239-2177-13831-74323-360799
1-967-10191-74323-452639
1-3639-43719-360799
1-13115-177119
1-45919
1
111111111
1-7-51-239-967-3639-13115-45919
1-51-399-2177-10191-43719-177119
1-239-2177-13831-74323-360799
1-967-10191-74323-452639
1-3639-43719-360799
1-13115-177119
1-45919
1