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.

A167656 Triangle T(n,k), 0<=k<=n, read by rows given by [1,1,2,1,2,1,2,1,2,1,2,...] DELTA [1,1,0,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 4
5 2
6 6
7 16
8 14
9 4
10 22
11 68
12 78
13 40
14 8
15 90
16 304
17 410
18 284
19 104
20 16
21 394
22 1412
23 2122
24 1776
25 896
26 256
27 32
28 1806
29 6752
30 10966
31 10468
32 6496
33 2592
34 608
35 64
36 8558
37 33028
38 56870
39 59832
40 43016
41 21376
42 7072
43 1408
44 128
45 41586
46 164512
47 296498
48 336252

List of values

[1, 1, 1, 2, 4, 2, 6, 16, 14, 4, 22, 68, 78, 40, 8, 90, 304, 410, 284, 104, 16, 394, 1412, 2122, 1776, 896, 256, 32, 1806, 6752, 10966, 10468, 6496, 2592, 608, 64, 8558, 33028, 56870, 59832, 43016, 21376, 7072, 1408, 128, 41586, 164512, 296498, 336252]