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.

A165241 Triangle T(n,k), 0 <= k <= n, read by rows, given by [1,1,0,0,0,0,0,0,0,...] DELTA [1,0,1,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 3
5 1
6 4
7 9
8 6
9 1
10 8
11 24
12 25
13 10
14 1
15 16
16 60
17 85
18 55
19 15
20 1
21 32
22 144
23 258
24 231
25 105
26 21
27 1
28 64
29 336
30 728
31 833
32 532
33 182
34 28
35 1
36 128
37 768
38 1952
39 2720
40 2241
41 1092
42 294
43 36
44 1
45 256
46 1728
47 5040
48 8280
49 8361
50 5301
51 2058
52 450
53 45
54 1

List of values

[1, 1, 1, 2, 3, 1, 4, 9, 6, 1, 8, 24, 25, 10, 1, 16, 60, 85, 55, 15, 1, 32, 144, 258, 231, 105, 21, 1, 64, 336, 728, 833, 532, 182, 28, 1, 128, 768, 1952, 2720, 2241, 1092, 294, 36, 1, 256, 1728, 5040, 8280, 8361, 5301, 2058, 450, 45, 1]