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.

A094456 Triangle T(n,k), 0<=k<=n, read by rows; given by [0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, ...] DELTA [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, ...] where DELTA is the operator defined in A084938.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 1
5 2
6 0
7 1
8 5
9 5
10 0
11 1
12 10
13 22
14 14
15 0
16 1
17 19
18 70
19 93
20 42
21 0
22 1
23 36
24 201
25 421
26 386
27 132
28 0
29 1
30 69
31 559
32 1657
33 2324
34 1586
35 429
36 0
37 1
38 134
39 1548
40 6162
41 11836
42 12136
43 6476
44 1430
45 0
46 1
47 263
48 4316
49 22445
50 55843
51 76928
52 60948
53 26333
54 4862
55 0
56 1
57 520
58 12163
59 81451
60 254415
61 444666
62 467426
63 297335
64 106762
65 16796

List of values

[1, 0, 1, 0, 1, 2, 0, 1, 5, 5, 0, 1, 10, 22, 14, 0, 1, 19, 70, 93, 42, 0, 1, 36, 201, 421, 386, 132, 0, 1, 69, 559, 1657, 2324, 1586, 429, 0, 1, 134, 1548, 6162, 11836, 12136, 6476, 1430, 0, 1, 263, 4316, 22445, 55843, 76928, 60948, 26333, 4862, 0, 1, 520, 12163, 81451, 254415, 444666, 467426, 297335, 106762, 16796]