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A017985 as a simple table

na(n)
01
11
22
34
46
510
616
725
840
964
10101
11161
12256
13406
14645
151024
161625
172580
184096
196501
2010321
2116384
2226007
2341285
2465536
25104031
26165140
27262144
28416127
29660561
301048576
311664510
322642245
334194304
346658042
3510568983
3616777216
3726632170
3842275935
3967108864

[1,1,2,4,6,10,16,25,40,64,101,161,256,406,645,
 1024,1625,2580,4096,6501,10321,16384,26007,41285,
 65536,104031,165140,262144,416127,660561,1048576,
 1664510,2642245,4194304,6658042,10568983,16777216,
 26632170,42275935,67108864]