login

A135949 as a simple table

na(n)
01
1-1
21
3-3
43
5-13
69
7-59
819
9-277
10-23
11-1347
12-669
13-6781
14-6039
15-35243
16-43757
17-188293
18-289271
19-1028979
20-1822941
21-5723437
22-11172663
23-32263067
24-67310189
25-183660661
26-401077079
27-1052923683
28-2372706717
29-6066772573
30-13969380951
31-35079276299

[1,-1,1,-3,3,-13,9,-59,19,-277,-23,-1347,-669,
 -6781,-6039,-35243,-43757,-188293,-289271,
 -1028979,-1822941,-5723437,-11172663,-32263067,
 -67310189,-183660661,-401077079,-1052923683,
 -2372706717,-6066772573,-13969380951,-35079276299]