login

A139422 as a simple table

na(n)
11
21
33
46
512
622
732
842
956
1072
1192
12110
13124
14138
15152
16168
17192
18222
19244
20258
21272
22290
23308
24328
25348
26368
27390
28416
29444
30468
31498
32524
33538
34548
35558
36576
37609
38638
39654
40670
41686
42702
43726
44754
45774
46794
47810
48834
49862
50874

[1,1,3,6,12,22,32,42,56,72,92,110,124,138,152,168,
 192,222,244,258,272,290,308,328,348,368,390,416,
 444,468,498,524,538,548,558,576,609,638,654,670,
 686,702,726,754,774,794,810,834,862,874]