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A243518 as a simple table

na(n)
13
25
310
425
577
6280
71157
85297
926443
10142372
11819731
125009281
1332252381
14217194296
151518771097
1610952508217
1780950970231
18609958242292
194664758144295
2036080343085145
21281462510140633
222209800140157400
2317432715938447165

[3,5,10,25,77,280,1157,5297,26443,142372,819731,
 5009281,32252381,217194296,1518771097,10952508217,
 80950970231,609958242292,4664758144295,
 36080343085145,281462510140633,2209800140157400,
 17432715938447165]