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.

A187862 Number of 7-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-queen's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions.

Table of values

n a(n)
1 0
2 0
3 1206
4 26584
5 180750
6 568870
7 1314428
8 2456614
9 4062007
10 6094090
11 8589253
12 11504726
13 14853686
14 18625870
15 22821278
16 27439910
17 32481766
18 37946846
19 43835150
20 50146678
21 56881430
22 64039406
23 71620606
24 79625030
25 88052678
26 96903550

List of values

[0, 0, 1206, 26584, 180750, 568870, 1314428, 2456614, 4062007, 6094090, 8589253, 11504726, 14853686, 18625870, 22821278, 27439910, 32481766, 37946846, 43835150, 50146678, 56881430, 64039406, 71620606, 79625030, 88052678, 96903550]