login

A119258 as a simple table

na(n)
01
11
21
31
43
51
61
75
87
91
101
117
1217
1315
141
151
169
1731
1849
1931
201
211
2211
2349
24111
25129
2663
271
281
2913
3071
31209
32351
33321
34127
351
361
3715
3897
39351
40769
411023
42769
43255
441
451
4617
47127
48545
491471
502561
512815
521793
53511
541
551
5619
57161
58799
592561
605503
617937
627423
634097
641023
651

[1,1,1,1,3,1,1,5,7,1,1,7,17,15,1,1,9,31,49,31,1,1,
 11,49,111,129,63,1,1,13,71,209,351,321,127,1,1,15,
 97,351,769,1023,769,255,1,1,17,127,545,1471,2561,
 2815,1793,511,1,1,19,161,799,2561,5503,7937,7423,
 4097,1023,1]