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A250855 as a simple table

na(n)
12670
213097
344797
4123016
5290646
6614965
71195457
82172712
93738406
106146361
119724685
1214888992
1322156702
1432162421
1545674401
1663612080
1787064702
18117311017
19155840061
20204373016
21264886150
22339634837
23431178657
24542407576
25676569206

[2670,13097,44797,123016,290646,614965,1195457,
 2172712,3738406,6146361,9724685,14888992,22156702,
 32162421,45674401,63612080,87064702,117311017,
 155840061,204373016,264886150,339634837,431178657,
 542407576,676569206]