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A171249 as a simple table

na(n)
12
23
34
46
57
625
738
8152
9312
10824
111195
121211
131335
142228
153435
163787
1710317
1811140
1911239

[2,3,4,6,7,25,38,152,312,824,1195,1211,1335,2228,
 3435,3787,10317,11140,11239]