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.

A152556 a(n) = 2*(2*n+2)^floor((n-1)/2).

Table of values

n a(n)
0 1
1 2
2 2
3 16
4 20
5 288
6 392
7 8192
8 11664
9 320000
10 468512
11 15925248
12 23762752
13 963780608
14 1458000000
15 68719476736
16 105046700288
17 5642219814912
18 8695584276992
19 524288000000000
20 813342767698944
21 54394721876836352
22 84841494965553152
23 6232805962420322304

List of values

[1, 2, 2, 16, 20, 288, 392, 8192, 11664, 320000, 468512, 15925248, 23762752, 963780608, 1458000000, 68719476736, 105046700288, 5642219814912, 8695584276992, 524288000000000, 813342767698944, 54394721876836352, 84841494965553152, 6232805962420322304]