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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.

A183949 Number of strings of numbers x(i=1..n) in 0..5 with sum i^2*x(i) equal to n^2*5.

Table of values

n a(n)
1 1
2 2
3 4
4 14
5 53
6 180
7 656
8 2195
9 7250
10 23044
11 71123
12 213368
13 624425
14 1784399
15 4986210
16 13657266
17 36691985
18 96863639
19 251472815
20 642811767
21 1619203005
22 4022796235
23 9864987052
24 23894800443
25 57205375668
26 135438579331
27 317296680619

List of values

[1, 2, 4, 14, 53, 180, 656, 2195, 7250, 23044, 71123, 213368, 624425, 1784399, 4986210, 13657266, 36691985, 96863639, 251472815, 642811767, 1619203005, 4022796235, 9864987052, 23894800443, 57205375668, 135438579331, 317296680619]

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

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