login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A347405 as a simple table

na(n)
11
23
33
47
53
613
73
815
97
1013
113
1249
133
1413
1513
1631
173
1849
193
2049
2113
2213
233
24185
257
2613
2715
2849
293
30159
313
3263
3313
3413
3513
36341
373
3813
3913
40185
413
42159
433
4449
4549
4613
473
48713
497
5049
5113
5249
533
54185
5513
56185
5713
5813
593
602275
613
6213
6349
64127
6513
66159
673
6849
6913
70159
713
722525
733
7413
7549
7649

[1,3,3,7,3,13,3,15,7,13,3,49,3,13,13,31,3,49,3,49,
 13,13,3,185,7,13,15,49,3,159,3,63,13,13,13,341,3,
 13,13,185,3,159,3,49,49,13,3,713,7,49,13,49,3,185,
 13,185,13,13,3,2275,3,13,49,127,13,159,3,49,13,
 159,3,2525,3,13,49,49]