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A350826 as a simple table

na(n)
11
21
30
40
53
60
713
864
9235
101296
117013
1241782
13253420
141607418
1510520883
1670785653
17488096844

[1,1,0,0,3,0,13,64,235,1296,7013,41782,253420,
 1607418,10520883,70785653,488096844]