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A280217 as a simple table

na(n)
10
21
31
40
52
60
76
826
926
106
116
1292
13158
1492
156
1630
17307
18886
19886
20307
2130
2254
231072
244382
257048
264382
271072
2854
29158
303541
3120593
3249328
3349328
3420593
353541
36158
37342
3811834
3993326
40320755
41474433
42320755
4393326
4411834
45342
46846
4738687
48410789
492001079

[0,1,1,0,2,0,6,26,26,6,6,92,158,92,6,30,307,886,
 886,307,30,54,1072,4382,7048,4382,1072,54,158,
 3541,20593,49328,49328,20593,3541,158,342,11834,
 93326,320755,474433,320755,93326,11834,342,846,
 38687,410789,2001079]