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.

A049691 a(n)=T(n,n), array T as in A049687. Also a(n)=T(2n,2n), array T given by A049639.

Table of values

n a(n)
0 0
1 3
2 5
3 9
4 13
5 21
6 25
7 37
8 45
9 57
10 65
11 85
12 93
13 117
14 129
15 145
16 161
17 193
18 205
19 241
20 257
21 281
22 301
23 345
24 361
25 401
26 425
27 461
28 485
29 541
30 557
31 617
32 649
33 689
34 721
35 769
36 793
37 865
38 901
39 949
40 981
41 1061
42 1085
43 1169
44 1209
45 1257
46 1301
47 1393
48 1425
49 1509
50 1549

List of values

[0, 3, 5, 9, 13, 21, 25, 37, 45, 57, 65, 85, 93, 117, 129, 145, 161, 193, 205, 241, 257, 281, 301, 345, 361, 401, 425, 461, 485, 541, 557, 617, 649, 689, 721, 769, 793, 865, 901, 949, 981, 1061, 1085, 1169, 1209, 1257, 1301, 1393, 1425, 1509, 1549]