login

A262260 as a simple table

na(n)
00
11
21
34
44
56
66
713
813
915
1015
1121
1221
1325
1425
1540
1640
1742
1842
1948
2048
2152
2252
2366
2466
2570
2670
2782
2882
2990
3090
31121
32121
33123
34123
35129
36129
37133
38133
39147
40147
41151
42151
43163
44163
45171
46171
47201
48201
49205
50205
51217
52217
53225
54225
55253
56253
57261
58261
59285
60285
61301
62301
63364
64364

[0,1,1,4,4,6,6,13,13,15,15,21,21,25,25,40,40,42,
 42,48,48,52,52,66,66,70,70,82,82,90,90,121,121,
 123,123,129,129,133,133,147,147,151,151,163,163,
 171,171,201,201,205,205,217,217,225,225,253,253,
 261,261,285,285,301,301,364,364]