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.

A184233 Number of strings of numbers x(i=1..n) in 0..2 with sum i^2*x(i)^2 equal to n^2*4.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 4
7 4
8 7
9 19
10 47
11 71
12 207
13 474
14 1077
15 2262
16 4729
17 9770
18 18932
19 39277
20 75259
21 142407
22 269217
23 504234
24 930683
25 1699058
26 3071779
27 5553557
28 9841969
29 17407209
30 30656831
31 53305283
32 92690067
33 159391413
34 274236367
35 467061289
36 794526219

List of values

[1, 1, 1, 1, 2, 4, 4, 7, 19, 47, 71, 207, 474, 1077, 2262, 4729, 9770, 18932, 39277, 75259, 142407, 269217, 504234, 930683, 1699058, 3071779, 5553557, 9841969, 17407209, 30656831, 53305283, 92690067, 159391413, 274236367, 467061289, 794526219]