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A059529 as a simple table

na(n)
01
11
22
35
49
516
632
768
8135
9256
10512
111059
122110
134096
148192
1516745
1633425
1765536
18131072
19266254
20531924
211048576
222097152
234244214
248482454
2516777216
2633554432
2767741466
28135417620
29268435456
30536870912
311082015434
322163280087
334294967296
348589934592

[1,1,2,5,9,16,32,68,135,256,512,1059,2110,4096,
 8192,16745,33425,65536,131072,266254,531924,
 1048576,2097152,4244214,8482454,16777216,33554432,
 67741466,135417620,268435456,536870912,1082015434,
 2163280087,4294967296,8589934592]