login

A204878 as a simple table

na(n)
11
22
33
44
55
67
78
89
910
1011
1113
1214
1315
1416
1517
1619
1720
1821
1922
2023
2125
2226
2327
2429
2531
2632
2733
2835
2937
3038
3139
3241
3343
3444
3545
3647
3749
3850
3951
4053
4155
4257
4359
4461
4563
4665
4767
4869
4971
5073
5175
5277
5379
5481
5583
5685
5787
5889
5991
6093
6195
6297
6399
64101
65103
66105

[1,2,3,4,5,7,8,9,10,11,13,14,15,16,17,19,20,21,22,
 23,25,26,27,29,31,32,33,35,37,38,39,41,43,44,45,
 47,49,50,51,53,55,57,59,61,63,65,67,69,71,73,75,
 77,79,81,83,85,87,89,91,93,95,97,99,101,103,105]