登录

A069834号作为一个简单的表

n个a(n)
11
2
45
515
621
77
89
945
1055
1133
1239
1391
14105
1515
1617
17153
18171
1995
20105
21231
22253
2369
2475
25325
26351
27189
28203
29435
30465
3131
3233
33561
34595
35315
36333
37703
38741
39195
40205
41861
42903
43473
44495
451035
461081
47141
48147
491225
501275
51663
52689
531431
541485
55385
56399

[1,3,3,5,15,21,7,9,45,55,33,39,91,105,15,17,153,171,95,105,231,253,69,75,325,351,189,203,435,465,31,33,561,595,315,333,703,741,195,205,861,903,473,495,1035,1081,141,147,1225,1275,663,689,1431,1485,385,399]