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A129891 as a simple table

na(n)
01
12
24
39
420
544
696
7209
8455
9991
102159
114704
1210249
1322330
1448651
15105997
16230938
17503150
181096225
192388372
205203604
2111337218
2224700671
2353815949
24117250109
25255455647
26556567394
271212606837
282641935832
295756049469
3012540844137

[1,2,4,9,20,44,96,209,455,991,2159,4704,10249,
 22330,48651,105997,230938,503150,1096225,2388372,
 5203604,11337218,24700671,53815949,117250109,
 255455647,556567394,1212606837,2641935832,
 5756049469,12540844137]