login

A287488 as a simple table

na(n)
01
11
22
32
44
54
610
710
820
920
1042
1142
1285
1385
14170
15170
16341
17341
18682
19682
201365
211365
222738
232738
245453
255453
2610994
2710994
2821773
2921773
3044018
3144018
3287052
3387052
34176122
35176122
36348166
37348166
38704505
39704505
401393542
411393542
422817146
432817146

[1,1,2,2,4,4,10,10,20,20,42,42,85,85,170,170,341,
 341,682,682,1365,1365,2738,2738,5453,5453,10994,
 10994,21773,21773,44018,44018,87052,87052,176122,
 176122,348166,348166,704505,704505,1393542,
 1393542,2817146,2817146]