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A231643 as a simple table

na(n)
010
115
225
345
485
5165
6325
7645
81285
92565
105125
1110245
1220485
1340965
1481925
15163845
16327685
17655365
181310725
192621445
205242885
2110485765
2220971525
2341943045
2483886085
25167772165
26335544325
27671088645
281342177285
292684354565
305368709125
3110737418245

[10,15,25,45,85,165,325,645,1285,2565,5125,10245,
 20485,40965,81925,163845,327685,655365,1310725,
 2621445,5242885,10485765,20971525,41943045,
 83886085,167772165,335544325,671088645,1342177285,
 2684354565,5368709125,10737418245]