login

A210521 as a simple table

na(n)
11
23
35
42
54
66
78
810
912
1014
117
129
1311
1413
1515
1617
1719
1821
1923
2025
2127
2216
2318
2420
2522
2624
2726
2828
2930
3032
3134
3236
3338
3440
3542
3644
3729
3831
3933
4035
4137
4239
4341
4443
4545
4647
4749
4851
4953
5055
5157
5259
5361
5463
5565
5646
5748
5850
5952
6054
6156
6258
6360
6462
6564
6666
6768

[1,3,5,2,4,6,8,10,12,14,7,9,11,13,15,17,19,21,23,
 25,27,16,18,20,22,24,26,28,30,32,34,36,38,40,42,
 44,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,
 59,61,63,65,46,48,50,52,54,56,58,60,62,64,66,68]