cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A118402 Row sums of triangle A118401.

Table of values

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

List of values

[1, 1, 3, 1, 5, -1, 7, -3, 9, -5, 11, -7, 13, -9, 15, -11, 17, -13, 19, -15, 21, -17, 23, -19, 25, -21, 27, -23, 29, -25, 31, -27, 33, -29, 35, -31, 37, -33, 39, -35, 41, -37, 43, -39, 45, -41, 47, -43, 49, -45, 51, -47, 53, -49, 55, -51, 57, -53, 59, -55, 61, -57, 63, -59, 65, -61, 67, -63, 69, -65, 71]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.