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”).

A328730 as a simple table

na(n)
11
2-2
3-3
4-3
5-5
60
7-7
80
9-6
100
11-11
129
13-13
140
150
162
17-17
1812
19-19
2015
210
220
23-23
2418
25-15
260
27-1
2821
29-29
3030
31-31
3212
330
340
350
3633
37-37
380
390
4030
41-41
4242
43-43
4433
4530
460
47-47
4830
49-28
5030
510
5239
53-53
5438
550
5642
570
580
59-59
6060
61-61
620
6342
6414
650
6666
67-67
6851
690
7070

[1,-2,-3,-3,-5,0,-7,0,-6,0,-11,9,-13,0,0,2,-17,12,
 -19,15,0,0,-23,18,-15,0,-1,21,-29,30,-31,12,0,0,0,
 33,-37,0,0,30,-41,42,-43,33,30,0,-47,30,-28,30,0,
 39,-53,38,0,42,0,0,-59,60,-61,0,42,14,0,66,-67,51,
 0,70]