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A156760 as a simple table

na(n)
04
119
279
3319
41279
55119
620479
781919
8327679
91310719
105242879
1120971519
1283886079
13335544319
141342177279
155368709119
1621474836479
1785899345919
18343597383679
191374389534719
205497558138879
2121990232555519
2287960930222079
23351843720888319

[4,19,79,319,1279,5119,20479,81919,327679,1310719,
 5242879,20971519,83886079,335544319,1342177279,
 5368709119,21474836479,85899345919,343597383679,
 1374389534719,5497558138879,21990232555519,
 87960930222079,351843720888319]