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.

A321967 Triangle read by rows, T(n,k) = binomial(-k-n-1, -2*n-1)*E1(k+n, n), E1 the Eulerian numbers A173018, for n >= 0 and 0 <= k <= n.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 -4
5 11
6 0
7 15
8 -156
9 302
10 0
11 -56
12 1596
13 -9528
14 15619
15 0
16 210
17 -14400
18 193185
19 -882340
20 1310354
21 0
22 -792
23 122265
24 -3213760
25 30042672
26 -116857368
27 162512286
28 0
29 3003
30 -1005004
31 47887840
32 -802069632
33 6034981134
34 -21078701112
35 27971176092

List of values

[1, 0, 1, 0, -4, 11, 0, 15, -156, 302, 0, -56, 1596, -9528, 15619, 0, 210, -14400, 193185, -882340, 1310354, 0, -792, 122265, -3213760, 30042672, -116857368, 162512286, 0, 3003, -1005004, 47887840, -802069632, 6034981134, -21078701112, 27971176092]