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.

A239519 a(n) = n + (n-1)*(n-2) + (n-3)*(n-4)*(n-5) + (n-6)*(n-7)*(n-8)*(n-9) + ... + ...*1.

Table of values

n a(n)
0 0
1 1
2 3
3 5
4 11
5 19
6 32
7 62
8 112
9 191
10 316
11 558
12 988
13 1711
14 2864
15 4661
16 7703
17 12883
18 21626
19 35989
20 58826
21 94217
22 150017
23 239047
24 382676
25 614425
26 984452
27 1565021
28 2458810
29 3826746
30 5918938
31 9136603
32 14115710
33 21842345
34 33804340
35 52186061
36 80128082
37 122221802

List of values

[0, 1, 3, 5, 11, 19, 32, 62, 112, 191, 316, 558, 988, 1711, 2864, 4661, 7703, 12883, 21626, 35989, 58826, 94217, 150017, 239047, 382676, 614425, 984452, 1565021, 2458810, 3826746, 5918938, 9136603, 14115710, 21842345, 33804340, 52186061, 80128082, 122221802]