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A307400 as a simple table

na(n)
01
11
22
39
428
5109
6440
71790
87537
932300
10140438
11618608
122753510
1312366672
1455973926
15255059808
161169143476
175387268256
1824940059514
19115943355422
20541047868905
212533458659581
2211900017205866
2356055896316345
24264748474342341
251253414056154014
265947373587731308

[1,1,2,9,28,109,440,1790,7537,32300,140438,618608,
 2753510,12366672,55973926,255059808,1169143476,
 5387268256,24940059514,115943355422,541047868905,
 2533458659581,11900017205866,56055896316345,
 264748474342341,1253414056154014,5947373587731308]