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.

A344321 a(n) = 2^(2*n - 5)*binomial(n-5/2, -1/2)*(36*n^4 - 78*n^3 + 54*n^2 - 48*n + 24)/((n + 1)*n*(n - 1)) for n >= 2 and otherwise 1.

Table of values

n a(n)
0 1
1 1
2 8
3 49
4 246
5 1157
6 5248
7 23256
8 101398
9 436865
10 1865136
11 7906054
12 33319388
13 139754994
14 583859968
15 2430991670
16 10092510630
17 41794856985
18 172699266480
19 712220712390
20 2932169392020
21 12052941519030
22 49475929052160
23 202838118604680

List of values

[1, 1, 8, 49, 246, 1157, 5248, 23256, 101398, 436865, 1865136, 7906054, 33319388, 139754994, 583859968, 2430991670, 10092510630, 41794856985, 172699266480, 712220712390, 2932169392020, 12052941519030, 49475929052160, 202838118604680]