login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A018870 as a simple table

na(n)
10
212
39
47
55
64
73
82
91
1021
1142
1220
1319
1440
1518
1617
1760
1816
1959
2015
2180
2214
23101
2457
2513
2678
2734
2812
2977
3033
3111
3298
3354
3410
35119
3675
3753
389
39118
4096
4152
4230
438
4495
4573
4651
477
48138
4994
5072
5150
5228
536
54115
5593
5671
5749
5827
595
60114
6192
6270
6348
6426
654
66135
67113
6891
6969
7047
7125
723
73134

[0,12,9,7,5,4,3,2,1,21,42,20,19,40,18,17,60,16,59,
 15,80,14,101,57,13,78,34,12,77,33,11,98,54,10,119,
 75,53,9,118,96,52,30,8,95,73,51,7,138,94,72,50,28,
 6,115,93,71,49,27,5,114,92,70,48,26,4,135,113,91,
 69,47,25,3,134]