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.

A045684 Number of 2n-bead balanced binary necklaces of fundamental period 2n which are inequivalent to their reverse, complement and reversed complement.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 8
6 32
7 168
8 616
9 2380
10 8464
11 30760
12 109612
13 394816
14 1420616
15 5149940
16 18736128
17 68553728
18 251899620
19 929814984
20 3445425136
21 12814382452
22 47817520376
23 178982546512
24 671813585080
25 2528191984496
26 9536849432000

List of values

[0, 0, 0, 0, 0, 8, 32, 168, 616, 2380, 8464, 30760, 109612, 394816, 1420616, 5149940, 18736128, 68553728, 251899620, 929814984, 3445425136, 12814382452, 47817520376, 178982546512, 671813585080, 2528191984496, 9536849432000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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