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A270639 as a simple table

na(n)
113741
216705
3150851
4208465
5249841
6252601
7258511
8410041
9486737
10635401
111052503
121082401
131457773
141507963
151579249
161615681
172113921
182184571
193090091
203375487
213726541
224682833
234895065
245044033
255133201
266233977
276255341
286350941
296474691
306912079
317259161

[13741,16705,150851,208465,249841,252601,258511,
 410041,486737,635401,1052503,1082401,1457773,
 1507963,1579249,1615681,2113921,2184571,3090091,
 3375487,3726541,4682833,4895065,5044033,5133201,
 6233977,6255341,6350941,6474691,6912079,7259161]