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A077276 as a simple table

na(n)
12
23
35
43
55
63
73
87
99
105
119
127
133
147
155
163
173
183
195
203
213
223
235
245
2557
2625
2749
283
299
305
3111
323
335

[2,3,5,3,5,3,3,7,9,5,9,7,3,7,5,3,3,3,5,3,3,3,5,5,
 57,25,49,3,9,5,11,3,5]