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.

A331331 Triangle read by rows, T(n, k) (0 <= k <= n) = (-m)^(n-k)*[x^k] KummerU(-n, 1/m, x) for m = 3.

Table of values

n a(n)
0 1
1 1
2 1
3 4
4 8
5 1
6 28
7 84
8 21
9 1
10 280
11 1120
12 420
13 40
14 1
15 3640
16 18200
17 9100
18 1300
19 65
20 1
21 58240
22 349440
23 218400
24 41600
25 3120
26 96
27 1
28 1106560
29 7745920
30 5809440
31 1383200
32 138320
33 6384
34 133
35 1
36 24344320
37 194754560
38 170410240
39 48688640
40 6086080
41 374528
42 11704
43 176
44 1

List of values

[1, 1, 1, 4, 8, 1, 28, 84, 21, 1, 280, 1120, 420, 40, 1, 3640, 18200, 9100, 1300, 65, 1, 58240, 349440, 218400, 41600, 3120, 96, 1, 1106560, 7745920, 5809440, 1383200, 138320, 6384, 133, 1, 24344320, 194754560, 170410240, 48688640, 6086080, 374528, 11704, 176, 1]