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.

A262014 Triangle in which the g.f. for row n is (1-x)^(4*n+1) * Sum_{j>=0} binomial(n+j-1,j)^4 * x^j, read by rows of k=0..3*n terms.

Table of values

n a(n)
0 1
1 1
2 11
3 11
4 1
5 1
6 72
7 603
8 1168
9 603
10 72
11 1
12 1
13 243
14 6750
15 49682
16 128124
17 128124
18 49682
19 6750
20 243
21 1
22 1
23 608
24 40136
25 724320
26 4961755
27 15018688
28 21571984
29 15018688
30 4961755
31 724320
32 40136
33 608
34 1
35 1
36 1275
37 167475
38 6021225
39 84646275
40 554083761
41 1858142825
42 3363309675
43 3363309675
44 1858142825
45 554083761
46 84646275
47 6021225
48 167475
49 1275
50 1
51 1
52 2376
53 554931
54 35138736
55 879018750
56 10490842656
57 66555527346
58 239677178256
59 509723668476
60 654019630000
61 509723668476

List of values

[1, 1, 11, 11, 1, 1, 72, 603, 1168, 603, 72, 1, 1, 243, 6750, 49682, 128124, 128124, 49682, 6750, 243, 1, 1, 608, 40136, 724320, 4961755, 15018688, 21571984, 15018688, 4961755, 724320, 40136, 608, 1, 1, 1275, 167475, 6021225, 84646275, 554083761, 1858142825, 3363309675, 3363309675, 1858142825, 554083761, 84646275, 6021225, 167475, 1275, 1, 1, 2376, 554931, 35138736, 879018750, 10490842656, 66555527346, 239677178256, 509723668476, 654019630000, 509723668476]