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A031670 as a simple table

na(n)
142461
2136981
3137722
4206237
5208057
6379681
7383386
8387109
9487493
10493093
11497314
12621305
13750397
14897338
15899233
16903029
171053301
181055354
191057409
201059466
211065649
221069781
231073921
241075994
251228393
261237273
271250653

[42461,136981,137722,206237,208057,379681,383386,
 387109,487493,493093,497314,621305,750397,897338,
 899233,903029,1053301,1055354,1057409,1059466,
 1065649,1069781,1073921,1075994,1228393,1237273,
 1250653]