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.

A063415 Triangle of coefficients of di-Boustrophedon transform (see A063179) read by rows: Let the original sequence be (U0,U1,...) and the transformed sequence (V0,V2,...), then Vn is a linear combination of U0,...,Un. T(n,m) is the coefficient that goes with Um to get Vn.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 2
5 1
6 4
7 5
8 3
9 1
10 12
11 14
12 9
13 4
14 1
15 42
16 51
17 32
18 14
19 5
20 1
21 178
22 214
23 137
24 60
25 20
26 6
27 1
28 870
29 1049
30 668
31 295
32 100
33 27
34 7
35 1
36 4830
37 5820
38 3713
39 1636
40 555
41 154
42 35
43 8
44 1
45 29976
46 36125
47 23036
48 10160
49 3446
50 952
51 224
52 44
53 9
54 1
55 205572
56 247734
57 157993
58 69664

List of values

[1, 1, 1, 2, 2, 1, 4, 5, 3, 1, 12, 14, 9, 4, 1, 42, 51, 32, 14, 5, 1, 178, 214, 137, 60, 20, 6, 1, 870, 1049, 668, 295, 100, 27, 7, 1, 4830, 5820, 3713, 1636, 555, 154, 35, 8, 1, 29976, 36125, 23036, 10160, 3446, 952, 224, 44, 9, 1, 205572, 247734, 157993, 69664]