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”).

A063441 as a simple table

na(n)
11
2-3
3-4
40
5-6
612
7-8
80
90
1018
11-12
120
13-14
1424
1524
160
17-18
180
19-20
200
2132
2236
23-24
240
250
2642
270
280
29-30
30-72
31-32
320
3348
3454
3548
360
37-38
3860
3956
400
41-42
42-96
43-44
440
450
4672
47-48
480
490
500
5172
520
53-54
540
5572
560
5780
5890
59-60
600
61-62
6296
630
640
6584
66-144
67-68
680
6996
70-144
71-72
720
73-74
74114
750
760
7796
78-168
79-80
800
810
82126
83-84
840
85108

[1,-3,-4,0,-6,12,-8,0,0,18,-12,0,-14,24,24,0,-18,
 0,-20,0,32,36,-24,0,0,42,0,0,-30,-72,-32,0,48,54,
 48,0,-38,60,56,0,-42,-96,-44,0,0,72,-48,0,0,0,72,
 0,-54,0,72,0,80,90,-60,0,-62,96,0,0,84,-144,-68,0,
 96,-144,-72,0,-74,114,0,0,96,-168,-80,0,0,126,-84,
 0,108]