login

A139956 as a simple table

na(n)
13
2139
3163
4211
5283
6379
7499
8547
9571
10619
11643
12691
13787
14811
15907
161051
171459
181627
191723
201867
212011
222131
232179
242203
252251
262539
272659
282683
292731
302851
313019
323067
333259
343499
353547
363643
373907
384051
394219
404243
414363
424483
434651

[3,139,163,211,283,379,499,547,571,619,643,691,
 787,811,907,1051,1459,1627,1723,1867,2011,2131,
 2179,2203,2251,2539,2659,2683,2731,2851,3019,3067,
 3259,3499,3547,3643,3907,4051,4219,4243,4363,4483,
 4651]