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.

A363400 Triangle read by rows. T(n, k) = [x^k] P(n, x), where P(n, x) = Sum_{k=0..n} 2^(n - k) * Sum_{j=0..k} (x^j * binomial(k, j) * ((2 - (n mod 2)) * j + 1)^n).

Table of values

n a(n)
0 1
1 3
2 2
3 7
4 36
5 25
6 15
7 88
8 135
9 64
10 31
11 2106
12 10000
13 14406
14 6561
15 63
16 1824
17 10206
18 22528
19 21875
20 7776
21 127
22 87480
23 1546875
24 7529536
25 15411789
26 14172488
27 4826809
28 255
29 31616
30 478953
31 2670592
32 7265625
33 10357632
34 7411887
35 2097152

List of values

[1, 3, 2, 7, 36, 25, 15, 88, 135, 64, 31, 2106, 10000, 14406, 6561, 63, 1824, 10206, 22528, 21875, 7776, 127, 87480, 1546875, 7529536, 15411789, 14172488, 4826809, 255, 31616, 478953, 2670592, 7265625, 10357632, 7411887, 2097152]