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”).

A133695 as a simple table

na(n)
11
2-3
3-3
4-1
5-3
61
7-3
8-1
9-1
101
11-3
12-1
13-3
141
151
16-1
17-3
18-1
19-3
20-1
211
221
23-3
24-1
25-1
261
27-1
28-1
29-3
30-3
31-3
32-1
331
341
351
36-1
37-3
381
391
40-1
41-3
42-3
43-3
44-1
45-1
461
47-3
48-1
49-1
50-1
511
52-1
53-3
54-1
551
56-1
571
581
59-3
60-1
61-3
621
63-1
64-1
651
66-3
67-3
68-1
691
70-3
71-3
72-1
73-3
741
75-1
76-1

[1,-3,-3,-1,-3,1,-3,-1,-1,1,-3,-1,-3,1,1,-1,-3,-1,
 -3,-1,1,1,-3,-1,-1,1,-1,-1,-3,-3,-3,-1,1,1,1,-1,
 -3,1,1,-1,-3,-3,-3,-1,-1,1,-3,-1,-1,-1,1,-1,-3,-1,
 1,-1,1,1,-3,-1,-3,1,-1,-1,1,-3,-3,-1,1,-3,-3,-1,
 -3,1,-1,-1]