login

A018805 as a simple table

na(n)
11
23
37
411
519
623
735
843
955
1063
1183
1291
13115
14127
15143
16159
17191
18203
19239
20255
21279
22299
23343
24359
25399
26423
27459
28483
29539
30555
31615
32647
33687
34719
35767
36791
37863
38899
39947
40979
411059
421083
431167
441207
451255
461299
471391
481423
491507
501547
511611
521659
531763

[1,3,7,11,19,23,35,43,55,63,83,91,115,127,143,159,
 191,203,239,255,279,299,343,359,399,423,459,483,
 539,555,615,647,687,719,767,791,863,899,947,979,
 1059,1083,1167,1207,1255,1299,1391,1423,1507,1547,
 1611,1659,1763]