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.

A358091 Triangle read by rows. Coefficients of the polynomials P(n, x) = 2^(n-2)*(3*n-1)* hypergeometric([-3*n, 1 - n, -n + 4/3], [-n, -n + 1/3], x). T(n, k) = [x^k] P(n, x).

Table of values

n a(n)
1 1
2 5
3 -6
4 16
5 -60
6 48
7 44
8 -288
9 660
10 -440
11 112
12 -1056
13 4032
14 -7280
15 4368
16 272
17 -3360
18 17952
19 -52224
20 81600
21 -45696
22 640
23 -9792
24 67200
25 -267520
26 656640
27 -930240
28 496128
29 1472
30 -26880
31 225216
32 -1133440
33 3740352
34 -8160768
35 10767680
36 -5537664

List of values

[1, 5, -6, 16, -60, 48, 44, -288, 660, -440, 112, -1056, 4032, -7280, 4368, 272, -3360, 17952, -52224, 81600, -45696, 640, -9792, 67200, -267520, 656640, -930240, 496128, 1472, -26880, 225216, -1133440, 3740352, -8160768, 10767680, -5537664]