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A239560 as a simple table

na(n)
01
11
21
32
44
58
616
732
864
9127
10252
11501
12997
131982
143940
157832
1615575
1730972
1861590
19122481
20243567
21484363
22963221
231915501
243809243
257575217
2615064391
2729957679
2859575090
29118473530
30235601447
31468526933
32931732343
331852882096
343684719208
357327587468

[1,1,1,2,4,8,16,32,64,127,252,501,997,1982,3940,
 7832,15575,30972,61590,122481,243567,484363,
 963221,1915501,3809243,7575217,15064391,29957679,
 59575090,118473530,235601447,468526933,931732343,
 1852882096,3684719208,7327587468]