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A124380 as a simple table

na(n)
01
11
22
34
49
522
657
7157
8453
91368
104296
1113995
1247138
13163779
14585741
152152349
168113188
1731326760
18123748871
19499539900
202058542819
218651755865
2237054078481
23161591063250
24717032333816
253235298221401
2614834735654080
2769085973044125

[1,1,2,4,9,22,57,157,453,1368,4296,13995,47138,
 163779,585741,2152349,8113188,31326760,123748871,
 499539900,2058542819,8651755865,37054078481,
 161591063250,717032333816,3235298221401,
 14834735654080,69085973044125]