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A287905 as a simple table

na(n)
01
13
26
37
428
515
6120
7223
8240
91023
10864
113455
124032
1316383
14384
1565023
1628416
17245759
18124416
19948223
202079744
211703935
228132608
238380415
2433288192
2532243711
26133980160
27129990655
28532922368
29520093695
301726054400
311065222143
328522760192
33432013311

[1,3,6,7,28,15,120,223,240,1023,864,3455,4032,
 16383,384,65023,28416,245759,124416,948223,
 2079744,1703935,8132608,8380415,33288192,32243711,
 133980160,129990655,532922368,520093695,
 1726054400,1065222143,8522760192,432013311]