login

A099570 as a simple table

na(n)
01
10
20
3-1
42
5-3
64
7-5
86
9-7
108
11-9
1210
13-11
1412
15-13
1614
17-15
1816
19-17
2018
21-19
2220
23-21
2422
25-23
2624
27-25
2826
29-27
3028
31-29
3230
33-31
3432
35-33
3634
37-35
3836
39-37
4038
41-39
4240
43-41
4442
45-43
4644
47-45
4846
49-47
5048
51-49
5250
53-51
5452
55-53
5654
57-55
5856
59-57
6058
61-59
6260
63-61
6462
65-63
6664
67-65
6866
69-67
7068
71-69
7270
73-71
7472
75-73

[1,0,0,-1,2,-3,4,-5,6,-7,8,-9,10,-11,12,-13,14,
 -15,16,-17,18,-19,20,-21,22,-23,24,-25,26,-27,28,
 -29,30,-31,32,-33,34,-35,36,-37,38,-39,40,-41,42,
 -43,44,-45,46,-47,48,-49,50,-51,52,-53,54,-55,56,
 -57,58,-59,60,-61,62,-63,64,-65,66,-67,68,-69,70,
 -71,72,-73]