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A025241 as a simple table

na(n)
11
21
31
41
52
64
78
817
937
1082
11185
12423
13978
142283
155373
1612735
1730372
1872832
19175502

[1,1,1,1,2,4,8,17,37,82,185,423,978,2283,5373,
 12735,30372,72832,175502]