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A352721 as a simple table

na(n)
10
21
38
464
51000
68000
764000
81000000
98000000
1064000000
111000000000
128000000000
1364000000000
141000000000000
158000000000000
1664000000000000
171000000000000000
188000000000000000
1964000000000000000
201000000000000000000
218000000000000000000
2264000000000000000000

[0,1,8,64,1000,8000,64000,1000000,8000000,
 64000000,1000000000,8000000000,64000000000,
 1000000000000,8000000000000,64000000000000,
 1000000000000000,8000000000000000,
 64000000000000000,1000000000000000000,
 8000000000000000000,64000000000000000000]