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”).

A273391 as a simple table

na(n)
04
14
212
30
424
5-12
648
7-32
860
9-36
10108
11-76
12136
13-152
14208
15-116
16220
17-264
18312
19-160
20296
21-356
22408
23-256
24440
25-516
26588
27-416
28612
29-728
30840
31-632
32876
33-988
341104
35-860
361124
37-1276
381380
39-1112
401408
41-1568
421700
43-1392
441720
45-1920
462040

[4,4,12,0,24,-12,48,-32,60,-36,108,-76,136,-152,
 208,-116,220,-264,312,-160,296,-356,408,-256,440,
 -516,588,-416,612,-728,840,-632,876,-988,1104,
 -860,1124,-1276,1380,-1112,1408,-1568,1700,-1392,
 1720,-1920,2040]