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A129937 as a simple table

na(n)
11
21
30
40
50
65
714
842
990
10207
11407
12858
131638
143341
156330
1612750
1724174
1848467
1992207
20184566
21352506
22705201
231351825
242703880
255200000
2610400275
2720057949
2840116222
2977558354
30155117085
31300539730
32601079894
331166802582
342333605659
354537567055
369075134670
3717672631234
3835345263097
3968923263669
40137846528040
41269128936400
42538257873579

[1,1,0,0,0,5,14,42,90,207,407,858,1638,3341,6330,
 12750,24174,48467,92207,184566,352506,705201,
 1351825,2703880,5200000,10400275,20057949,
 40116222,77558354,155117085,300539730,601079894,
 1166802582,2333605659,4537567055,9075134670,
 17672631234,35345263097,68923263669,137846528040,
 269128936400,538257873579]