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A221255 as a simple table

na(n)
10
21
30
42
54
60
74
88
916
100
118
1281
1330
1464
150
1616
17392
182116
19112
20256
210
2232
232500
2422268
2558081
26418
271024
280
2964
3014112
31488601
321319409
331612900
341560
354096
360
37128
3883521
397356420
40103489929
4178633756
4244903401
435822
4416384
450
46256
47484128
48132273001

[0,1,0,2,4,0,4,8,16,0,8,81,30,64,0,16,392,2116,
 112,256,0,32,2500,22268,58081,418,1024,0,64,14112,
 488601,1319409,1612900,1560,4096,0,128,83521,
 7356420,103489929,78633756,44903401,5822,16384,0,
 256,484128,132273001]