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A146266 as a simple table

na(n)
11
21
31
41
51
61
710
85
944
1017
11490
1245
133832
14281
1572349
164672
171945156
1878267
1977811492
201571678
214162726786
2252679419
23355835905036
243071977536
2544996289731531
26240721783237

[1,1,1,1,1,1,10,5,44,17,490,45,3832,281,72349,
 4672,1945156,78267,77811492,1571678,4162726786,
 52679419,355835905036,3071977536,44996289731531,
 240721783237]