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.

A328347 Number T(n,k) of n-step walks on cubic lattice starting at (0,0,0), ending at (0,k,n-k) and using steps (0,0,1), (0,1,0), (1,0,0), (-1,1,1), (1,-1,1), and (1,1,-1); triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 4
5 3
6 7
7 15
8 15
9 7
10 19
11 52
12 72
13 52
14 19
15 51
16 175
17 300
18 300
19 175
20 51
21 141
22 576
23 1185
24 1480
25 1185
26 576
27 141
28 393
29 1869
30 4473
31 6685
32 6685
33 4473
34 1869
35 393
36 1107
37 6000
38 16380
39 28392
40 33880
41 28392
42 16380
43 6000
44 1107
45 3139
46 19107
47 58572
48 115332
49 159264
50 159264
51 115332
52 58572
53 19107
54 3139

List of values

[1, 1, 1, 3, 4, 3, 7, 15, 15, 7, 19, 52, 72, 52, 19, 51, 175, 300, 300, 175, 51, 141, 576, 1185, 1480, 1185, 576, 141, 393, 1869, 4473, 6685, 6685, 4473, 1869, 393, 1107, 6000, 16380, 28392, 33880, 28392, 16380, 6000, 1107, 3139, 19107, 58572, 115332, 159264, 159264, 115332, 58572, 19107, 3139]