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.

A187756 a(n) = n^2 * (4*n^2 - 1) / 3.

Table of values

n a(n)
0 0
1 1
2 20
3 105
4 336
5 825
6 1716
7 3185
8 5440
9 8721
10 13300
11 19481
12 27600
13 38025
14 51156
15 67425
16 87296
17 111265
18 139860
19 173641
20 213200
21 259161
22 312180
23 372945
24 442176
25 520625
26 609076
27 708345
28 819280
29 942761
30 1079700
31 1231041
32 1397760
33 1580865
34 1781396
35 2000425

List of values

[0, 1, 20, 105, 336, 825, 1716, 3185, 5440, 8721, 13300, 19481, 27600, 38025, 51156, 67425, 87296, 111265, 139860, 173641, 213200, 259161, 312180, 372945, 442176, 520625, 609076, 708345, 819280, 942761, 1079700, 1231041, 1397760, 1580865, 1781396, 2000425]

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

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