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.

A001497 Triangle of coefficients of Bessel polynomials (exponents in decreasing order).

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 3
5 1
6 15
7 15
8 6
9 1
10 105
11 105
12 45
13 10
14 1
15 945
16 945
17 420
18 105
19 15
20 1
21 10395
22 10395
23 4725
24 1260
25 210
26 21
27 1
28 135135
29 135135
30 62370
31 17325
32 3150
33 378
34 28
35 1
36 2027025
37 2027025
38 945945
39 270270
40 51975
41 6930
42 630
43 36
44 1
45 34459425
46 34459425
47 16216200
48 4729725
49 945945
50 135135
51 13860
52 990
53 45
54 1

List of values

[1, 1, 1, 3, 3, 1, 15, 15, 6, 1, 105, 105, 45, 10, 1, 945, 945, 420, 105, 15, 1, 10395, 10395, 4725, 1260, 210, 21, 1, 135135, 135135, 62370, 17325, 3150, 378, 28, 1, 2027025, 2027025, 945945, 270270, 51975, 6930, 630, 36, 1, 34459425, 34459425, 16216200, 4729725, 945945, 135135, 13860, 990, 45, 1]