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A138616 as a simple table

na(n)
00
11
21
37
41
57
617
7119
8193
9327
10753
111175
122081
136375
143665
159271
1632129
1728295
1866993
19206807
20923361
211220647
222253073
237382903
249737281
251052103
2640919153
2717998615
28125990305
29345061223
30804815825
31265001655
321855011585
334395146503
344996221745

[0,1,1,7,1,7,17,119,193,327,753,1175,2081,6375,
 3665,9271,32129,28295,66993,206807,923361,1220647,
 2253073,7382903,9737281,1052103,40919153,17998615,
 125990305,345061223,804815825,265001655,
 1855011585,4395146503,4996221745]