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.

A274817 a(n) = 2*a(n-1) - a(n-3) + 2*a(n-4) for n>3, a(0)=1, a(1)=-1, a(2)=4, a(3)=8.

Table of values

n a(n)
0 1
1 -1
2 4
3 8
4 19
5 32
6 64
7 125
8 256
9 512
10 1027
11 2048
12 4096
13 8189
14 16384
15 32768
16 65539
17 131072
18 262144
19 524285
20 1048576
21 2097152
22 4194307
23 8388608
24 16777216
25 33554429
26 67108864
27 134217728
28 268435459
29 536870912
30 1073741824
31 2147483645
32 4294967296
33 8589934592

List of values

[1, -1, 4, 8, 19, 32, 64, 125, 256, 512, 1027, 2048, 4096, 8189, 16384, 32768, 65539, 131072, 262144, 524285, 1048576, 2097152, 4194307, 8388608, 16777216, 33554429, 67108864, 134217728, 268435459, 536870912, 1073741824, 2147483645, 4294967296, 8589934592]