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A279534 as a simple table

na(n)
10
21
31
40
50
60
73
815
915
103
116
12222
13668
14222
156
1624
172348
1821430
1921430
202348
2124
2272
2321302
24539596
251585524
26539596
2721302
2872
29232
30176125
3112335295
32102868091
33102868091
3412335295
35176125
36232
37720
381370378
39263171408
406167352480

[0,1,1,0,0,0,3,15,15,3,6,222,668,222,6,24,2348,
 21430,21430,2348,24,72,21302,539596,1585524,
 539596,21302,72,232,176125,12335295,102868091,
 102868091,12335295,176125,232,720,1370378,
 263171408,6167352480]