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.

A232604 a(n) = 2^n * Sum_{k=0..n} k^p*q^k, where p=3, q=-1/2.

Table of values

n a(n)
0 0
1 -1
2 6
3 -15
4 34
5 -57
6 102
7 -139
8 234
9 -261
10 478
11 -375
12 978
13 -241
14 2262
15 1149
16 6394
17 7875
18 21582
19 36305
20 80610
21 151959
22 314566
23 616965
24 1247754
25 2479883
26 4977342
27 9935001
28 19891954
29 39759519
30 79546038
31 159062285

List of values

[0, -1, 6, -15, 34, -57, 102, -139, 234, -261, 478, -375, 978, -241, 2262, 1149, 6394, 7875, 21582, 36305, 80610, 151959, 314566, 616965, 1247754, 2479883, 4977342, 9935001, 19891954, 39759519, 79546038, 159062285]