login

A056809 as a simple table

na(n)
133
285
393
4121
5141
6201
7213
8217
9301
10393
11445
12633
13697
14841
15921
161041
171137
181261
191345
201401
211641
221761
231837
241893
251941
261981
272101
282181
292217
302305
312361
322433
332461
342517
352641
362721
372733
383097
393385
403601
413693
423865
433901
443957
454285

[33,85,93,121,141,201,213,217,301,393,445,633,697,
 841,921,1041,1137,1261,1345,1401,1641,1761,1837,
 1893,1941,1981,2101,2181,2217,2305,2361,2433,2461,
 2517,2641,2721,2733,3097,3385,3601,3693,3865,3901,
 3957,4285]