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.

A079863 a(n) is the number of occurrences of 11s in the palindromic compositions of m=2*n-1 = the number of occurrences of 12s in the palindromic compositions of m=2*n.

Table of values

n a(n)
12 34
13 70
14 144
15 296
16 608
17 1248
18 2560
19 5248
20 10752
21 22016
22 45056
23 92160
24 188416
25 385024
26 786432
27 1605632
28 3276800
29 6684672
30 13631488
31 27787264
32 56623104
33 115343360
34 234881024
35 478150656
36 973078528
37 1979711488
38 4026531840
39 8187281408
40 16642998272
41 33822867456

List of values

[34, 70, 144, 296, 608, 1248, 2560, 5248, 10752, 22016, 45056, 92160, 188416, 385024, 786432, 1605632, 3276800, 6684672, 13631488, 27787264, 56623104, 115343360, 234881024, 478150656, 973078528, 1979711488, 4026531840, 8187281408, 16642998272, 33822867456]