login

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

A216518 as a simple table

na(n)
13
27
313
419
531
661
7127
8607
91279
102203
112281
123217
134423
1423209
1544497
16110503
17132049
18216091
191257787
2013466917
2120996011
2224036583
2330402457
2442643801

[3,7,13,19,31,61,127,607,1279,2203,2281,3217,4423,
 23209,44497,110503,132049,216091,1257787,13466917,
 20996011,24036583,30402457,42643801]