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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.

A223513 Triangle T(n,k) represents the coefficients of (x^11*d/dx)^n, where n=1,2,3,...

Table of values

n a(n)
1 1
2 11
3 1
4 231
5 33
6 1
7 7161
8 1287
9 66
10 1
11 293601
12 61215
13 4125
14 110
15 1
16 14973651
17 3476781
18 279840
19 10065
20 165
21 1
22 913392711
23 230534073
24 21106701
25 924000
26 20790
27 231
28 1
29 64850882481
30 17511845967
31 1771323246
32 89482701
33 2483250
34 38346
35 308
36 1

List of values

[1, 11, 1, 231, 33, 1, 7161, 1287, 66, 1, 293601, 61215, 4125, 110, 1, 14973651, 3476781, 279840, 10065, 165, 1, 913392711, 230534073, 21106701, 924000, 20790, 231, 1, 64850882481, 17511845967, 1771323246, 89482701, 2483250, 38346, 308, 1]