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.

A212784 Half the number of 0..n arrays of length 5 with second differences nonzero.

Table of values

n a(n)
1 8
2 66
3 350
4 1134
5 3010
6 6724
7 13544
8 24870
9 42952
10 70060
11 109638
12 165098
13 241342
14 343074
15 476992
16 649304
17 868684
18 1143156
19 1483630
20 1900056
21 2405958
22 3013428
23 3738744
24 4596484
25 5605944
26 6784266
27 8154174
28 9735586
29 11554762
30 13634780

List of values

[8, 66, 350, 1134, 3010, 6724, 13544, 24870, 42952, 70060, 109638, 165098, 241342, 343074, 476992, 649304, 868684, 1143156, 1483630, 1900056, 2405958, 3013428, 3738744, 4596484, 5605944, 6784266, 8154174, 9735586, 11554762, 13634780]