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.

A212089 Number of (w,x,y,z) with all terms in {1,...,n} and w>=average{x,y,z}.

Table of values

n a(n)
0 0
1 1
2 9
3 45
4 139
5 333
6 684
7 1258
8 2133
9 3402
10 5167
11 7542
12 10656
13 14647
14 19665
15 25875
16 33451
17 42579
18 53460
19 66304
20 81333
21 98784
22 118903
23 141948
24 168192
25 197917
26 231417
27 269001
28 310987
29 357705
30 409500
31 466726
32 529749
33 598950
34 674719

List of values

[0, 1, 9, 45, 139, 333, 684, 1258, 2133, 3402, 5167, 7542, 10656, 14647, 19665, 25875, 33451, 42579, 53460, 66304, 81333, 98784, 118903, 141948, 168192, 197917, 231417, 269001, 310987, 357705, 409500, 466726, 529749, 598950, 674719]