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.

A341111 T(n, k) = [x^k] M(n)*Sum_{k=0..n} E2(n, k)*binomial(-x + n - k, 2*n), where E2 are the second-order Eulerian numbers A340556 and M(n) are the Minkowski numbers A053657. Triangle read by rows, T(n, k) for n >= 0 and 0 <= k <= 2*n+1.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 0
5 10
6 21
7 14
8 3
9 0
10 36
11 96
12 97
13 47
14 11
15 1
16 0
17 12048
18 36740
19 45420
20 29855
21 11352
22 2510
23 300
24 15
25 0
26 91200
27 304480
28 427348
29 334620
30 162255
31 50787
32 10302
33 1310
34 95
35 3
36 0
37 109941120
38 392583744
39 603023624
40 531477324
41 300731214
42 115291701
43 30675678
44 5682033
45 719866
46 59535
47 2898
48 63

List of values

[1, 0, 1, 1, 0, 10, 21, 14, 3, 0, 36, 96, 97, 47, 11, 1, 0, 12048, 36740, 45420, 29855, 11352, 2510, 300, 15, 0, 91200, 304480, 427348, 334620, 162255, 50787, 10302, 1310, 95, 3, 0, 109941120, 392583744, 603023624, 531477324, 300731214, 115291701, 30675678, 5682033, 719866, 59535, 2898, 63]