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”).

A057001 as a simple table

na(n)
30
41
5-1
62
7-1
81
9-1
103
11-3
124
13-3
141
150
164
17-5
186
19-5
202
21-1
226
23-7
246
25-4
263
27-3
288
29-10
3011
31-7
322
33-2
344
35-6
3612
37-9
383
39-4
4012
41-14
4215
43-11
442
45-1
4612
47-15
4813
49-11
506
51-4
5214
53-17
5411
55-8
566
57-4
5815
59-21
6022
61-15
623
63-2
648
65-14
6623
67-17
686
69-10
7023
71-23
7224
73-18
742
75-2
7612
77-18
7827
79-23
8011

[0,1,-1,2,-1,1,-1,3,-3,4,-3,1,0,4,-5,6,-5,2,-1,6,
 -7,6,-4,3,-3,8,-10,11,-7,2,-2,4,-6,12,-9,3,-4,12,
 -14,15,-11,2,-1,12,-15,13,-11,6,-4,14,-17,11,-8,6,
 -4,15,-21,22,-15,3,-2,8,-14,23,-17,6,-10,23,-23,
 24,-18,2,-2,12,-18,27,-23,11]