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.

A085792 Triangle T(n, k) read by rows; given by [1, 0, 0, 0, 0, ...] DELTA [1, 1, 2, 5, 14, 42, 132, 429, 1430, ...] (A000108) where DELTA is Deléham's operator defined in A084938.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 2
6 1
7 5
8 10
9 6
10 1
11 7
12 22
13 46
14 30
15 1
16 9
17 38
18 114
19 422
20 338
21 1
22 11
23 58
24 218
25 1002
26 12614
27 11782
28 1
29 13
30 82
31 366
32 1850
33 26830
34 1432478
35 1407202
36 1
37 15
38 110
39 566
40 3062
41 43650
42 2907546
43 575135822
44 572269334
45 1
46 17
47 142
48 826
49 4750
50 63946

List of values

[1, 1, 1, 1, 3, 2, 1, 5, 10, 6, 1, 7, 22, 46, 30, 1, 9, 38, 114, 422, 338, 1, 11, 58, 218, 1002, 12614, 11782, 1, 13, 82, 366, 1850, 26830, 1432478, 1407202, 1, 15, 110, 566, 3062, 43650, 2907546, 575135822, 572269334, 1, 17, 142, 826, 4750, 63946]