login

A048639 as a simple table

na(n)
13
25
39
46
510
617
733
818
965
1012
11129
1234
13257
1466
1520
16130
17513
181025
1936
20258
212049
2224
234097
2468
258193
26514
2740
281026
2916385
30132
3132769
322050
33260
3465537
3572
36131073
374098
388194
39136
40262145
4116386
42524289
4348
44516
451048577
461028
472097153
4832770

[3,5,9,6,10,17,33,18,65,12,129,34,257,66,20,130,
 513,1025,36,258,2049,24,4097,68,8193,514,40,1026,
 16385,132,32769,2050,260,65537,72,131073,4098,
 8194,136,262145,16386,524289,48,516,1048577,1028,
 2097153,32770]