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A114991 as a simple table

na(n)
131
261
3151
4181
5241
6271
7541
8601
9751
10811
111201
121621
131801
142161
152251
163001
174051
184801
194861
206481
217681
228101
238641
249001
259601
269721
2711251
2814401
2915361
3019441
3121601
3221871
3322501
3423041
3524001
3632401
3733751
3836451
3937501
4043201
4154001
4257601
4358321

[31,61,151,181,241,271,541,601,751,811,1201,1621,
 1801,2161,2251,3001,4051,4801,4861,6481,7681,8101,
 8641,9001,9601,9721,11251,14401,15361,19441,21601,
 21871,22501,23041,24001,32401,33751,36451,37501,
 43201,54001,57601,58321]