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A146284 as a simple table

na(n)
11
21
31
41
51
61
71
81
95
109
1117
1225
1355
14133
15419
161009
174455
1814333
1961219
20207501
21982915
224258653
2326235061
24130258871
251014665059
266176852821

[1,1,1,1,1,1,1,1,5,9,17,25,55,133,419,1009,4455,
 14333,61219,207501,982915,4258653,26235061,
 130258871,1014665059,6176852821]