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.

A269742 Triangle of generalized Eulerian numbers T(n,k) = _2 read by rows, n >= 1, 0 <= k < 2*n.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 4
7 11
8 4
9 1
10 1
11 11
12 72
13 114
14 72
15 11
16 1
17 1
18 26
19 367
20 1492
21 2438
22 1492
23 367
24 26
25 1
26 1
27 57
28 1630
29 13992
30 48965
31 73120
32 48965
33 13992
34 1630
35 57
36 1
37 1
38 120
39 6680
40 109538
41 727982
42 2169674
43 3107640
44 2169674
45 727982
46 109538
47 6680
48 120
49 1

List of values

[1, 1, 1, 1, 1, 4, 11, 4, 1, 1, 11, 72, 114, 72, 11, 1, 1, 26, 367, 1492, 2438, 1492, 367, 26, 1, 1, 57, 1630, 13992, 48965, 73120, 48965, 13992, 1630, 57, 1, 1, 120, 6680, 109538, 727982, 2169674, 3107640, 2169674, 727982, 109538, 6680, 120, 1]