login

A248220 as a simple table

na(n)
11
22
34
47
514
616
725
831
939
1048
1149
1252
1357
1464
1573
1674
1779
1884
1986
2097
21100
22112
23121
24127
25129
26134
27169
28192
29194
30196
31199
32217
33241
34244
35254
36256
37266
38273
39289
40292
41302
42304
43326
44336
45337
46350
47361
48372
49399
50400
51409
52448
53457
54484
55487
56489
57511

[1,2,4,7,14,16,25,31,39,48,49,52,57,64,73,74,79,
 84,86,97,100,112,121,127,129,134,169,192,194,196,
 199,217,241,244,254,256,266,273,289,292,302,304,
 326,336,337,350,361,372,399,400,409,448,457,484,
 487,489,511]