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.

A192442 Coefficient of x^n in the expansion of (1+x^3+x^4)^n.

Table of values

n a(n)
0 1
1 0
2 0
3 3
4 4
5 0
6 15
7 42
8 28
9 84
10 360
11 495
12 715
13 2860
14 6006
15 8463
16 23660
17 61880
18 104244
19 220932
20 596904
21 1201560
22 2313003
23 5753979
24 12983707
25 25477100
26 57557500
27 135227235
28 280913490
29 600900300
30 1395727515
31 3046800900
32 6447717900
33 14540497920
34 32572229976
35 69844899432

List of values

[1, 0, 0, 3, 4, 0, 15, 42, 28, 84, 360, 495, 715, 2860, 6006, 8463, 23660, 61880, 104244, 220932, 596904, 1201560, 2313003, 5753979, 12983707, 25477100, 57557500, 135227235, 280913490, 600900300, 1395727515, 3046800900, 6447717900, 14540497920, 32572229976, 69844899432]