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A034571 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
332
3415
3558
36202
37640
381972
395764
4016519
4145934
42125368
43335001
44880790
452277570
465807361
4714606053
4836288251
4989105335
50216441863
51520344745
521238862123

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,2,15,58,202,640,1972,5764,16519,
 45934,125368,335001,880790,2277570,5807361,
 14606053,36288251,89105335,216441863,520344745,
 1238862123]