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”).

A347992 as a simple table

na(n)
11
20
30
41
50
6-2
70
80
91
10-2
110
12-2
130
14-2
15-2
161
170
18-2
190
20-2
21-2
22-2
230
24-4
251
26-2
270
28-2
290
30-6
310
320
33-2
34-2
35-2
36-1
370
38-2
39-2
40-4
410
42-6
430
44-2
45-2
46-2
470
48-4
491
50-2
51-2
52-2
530
54-4
55-2
56-4
57-2
58-2
590
60-8
610
62-2
63-2
641
65-2
66-6
670
68-2
69-2
70-6
710
72-4
730
74-2
75-2
76-2
77-2
78-6
790
80-4
811
82-2
830
84-8
85-2
86-2
87-2

[1,0,0,1,0,-2,0,0,1,-2,0,-2,0,-2,-2,1,0,-2,0,-2,
 -2,-2,0,-4,1,-2,0,-2,0,-6,0,0,-2,-2,-2,-1,0,-2,-2,
 -4,0,-6,0,-2,-2,-2,0,-4,1,-2,-2,-2,0,-4,-2,-4,-2,
 -2,0,-8,0,-2,-2,1,-2,-6,0,-2,-2,-6,0,-4,0,-2,-2,
 -2,-2,-6,0,-4,1,-2,0,-8,-2,-2,-2]