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A047765 as a simple table

na(n)
10
20
30
41
50
62
70
82
90
107
110
1212
130
1429
150
1655
170
18143
190
20271
210
22728
230
241428
250
263873
270
287752
290
3021318
310
3243256
330
34120175
350
36246675
370
38690678
390
401430715
410
424032015
430
448414610
450
4623841480
470
4850067108
490
50142498637
510
52300830572

[0,0,0,1,0,2,0,2,0,7,0,12,0,29,0,55,0,143,0,271,0,
 728,0,1428,0,3873,0,7752,0,21318,0,43256,0,120175,
 0,246675,0,690678,0,1430715,0,4032015,0,8414610,0,
 23841480,0,50067108,0,142498637,0,300830572]