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.

A085474 C(2*n+4,4)-C(2*n,4).

Table of values

n a(n)
0 1
1 15
2 69
3 195
4 425
5 791
6 1325
7 2059
8 3025
9 4255
10 5781
11 7635
12 9849
13 12455
14 15485
15 18971
16 22945
17 27439
18 32485
19 38115
20 44361
21 51255
22 58829
23 67115
24 76145
25 85951
26 96565
27 108019
28 120345
29 133575
30 147741
31 162875
32 179009
33 196175
34 214405
35 233731

List of values

[1, 15, 69, 195, 425, 791, 1325, 2059, 3025, 4255, 5781, 7635, 9849, 12455, 15485, 18971, 22945, 27439, 32485, 38115, 44361, 51255, 58829, 67115, 76145, 85951, 96565, 108019, 120345, 133575, 147741, 162875, 179009, 196175, 214405, 233731]