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A175604 as a simple table

na(n)
124
2744
37944
479944
5799944
67999944
779999944
8799999944
97999999944
1079999999944
11799999999944
127999999999944
1379999999999944
14799999999999944
157999999999999944
1679999999999999944
17799999999999999944

[24,744,7944,79944,799944,7999944,79999944,
 799999944,7999999944,79999999944,799999999944,
 7999999999944,79999999999944,799999999999944,
 7999999999999944,79999999999999944,
 799999999999999944]