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.

A248825 a(n) = n^2 + 1 - (-1)^n.

Table of values

n a(n)
0 0
1 3
2 4
3 11
4 16
5 27
6 36
7 51
8 64
9 83
10 100
11 123
12 144
13 171
14 196
15 227
16 256
17 291
18 324
19 363
20 400
21 443
22 484
23 531
24 576
25 627
26 676
27 731
28 784
29 843
30 900
31 963
32 1024
33 1091
34 1156
35 1227
36 1296
37 1371
38 1444
39 1523
40 1600
41 1683
42 1764
43 1851
44 1936
45 2027
46 2116

List of values

[0, 3, 4, 11, 16, 27, 36, 51, 64, 83, 100, 123, 144, 171, 196, 227, 256, 291, 324, 363, 400, 443, 484, 531, 576, 627, 676, 731, 784, 843, 900, 963, 1024, 1091, 1156, 1227, 1296, 1371, 1444, 1523, 1600, 1683, 1764, 1851, 1936, 2027, 2116]