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A350010 as a simple table

na(n)
11
21
31
42
51
66
77
8423
93460
1035878510
116320290037
124612966007179768
1315859695832489637513

[1,1,1,2,1,6,7,423,3460,35878510,6320290037,
 4612966007179768,15859695832489637513]