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.

A047131 a(n) = Sum_{i=0..n} A047130(i, n-i).

Table of values

n a(n)
0 1
1 2
2 3
3 6
4 10
5 20
6 35
7 70
8 140
9 252
10 504
11 932
12 1864
13 3493
14 6986
15 13972
16 26265
17 52530
18 100168
19 200336
20 384573
21 769146
22 1538292
23 2950530
24 5901060
25 11422700
26 22845400
27 44403564
28 88807128
29 177614256
30 344644881
31 689289762
32 1346117062

List of values

[1, 2, 3, 6, 10, 20, 35, 70, 140, 252, 504, 932, 1864, 3493, 6986, 13972, 26265, 52530, 100168, 200336, 384573, 769146, 1538292, 2950530, 5901060, 11422700, 22845400, 44403564, 88807128, 177614256, 344644881, 689289762, 1346117062]

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

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