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.

A220706 Number of ways to reciprocally link elements of an n X 6 array either to themselves or to exactly two horizontal and antidiagonal neighbors, without consecutive collinear links.

Table of values

n a(n)
1 1
2 8
3 24
4 105
5 405
6 1617
7 6412
8 25449
9 101029
10 400986
11 1591697
12 6317904
13 25077948
14 99542634
15 395117919
16 1568354512
17 6225321052
18 24710371599
19 98083689723
20 389326813396
21 1545367714146
22 6134078853549
23 24348200775585
24 96646113488531

List of values

[1, 8, 24, 105, 405, 1617, 6412, 25449, 101029, 400986, 1591697, 6317904, 25077948, 99542634, 395117919, 1568354512, 6225321052, 24710371599, 98083689723, 389326813396, 1545367714146, 6134078853549, 24348200775585, 96646113488531]