login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A069889 as a simple table

na(n)
00
11
23
32
47
58
66
74
85
917
1020
1118
1221
1322
1416
1519
1614
179
1811
1915
2010
2112
2213
2345
2454
2548
2657
2761
2846
2955
3049
3158
3262
3350
3459
3563
3664
3744
3853
3947
4056
4160
4242
4351
4437
4523
4628
4739
4825
4930
5033
5143
5252
5338
5424
5529
5640
5726
5831
5934
6041
6127
6232
6335
6436
65129
66157
67138
68166
69180

[0,1,3,2,7,8,6,4,5,17,20,18,21,22,16,19,14,9,11,
 15,10,12,13,45,54,48,57,61,46,55,49,58,62,50,59,
 63,64,44,53,47,56,60,42,51,37,23,28,39,25,30,33,
 43,52,38,24,29,40,26,31,34,41,27,32,35,36,129,157,
 138,166,180]