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.

A265132 Number of nonintersecting (or self-avoiding) rook paths joining opposite corners of an n X n grid that move in 3 or fewer cardinal directions.

Table of values

n a(n)
1 1
2 2
3 12
4 108
5 1180
6 15300
7 234374
8 4190872
9 86080572
10 1999951380
11 51874664446
12 1486016035944
13 46596167540806
14 1587429536107688
15 58385852010664650
16 2305843009058576432
17 97322383750732656572
18 4371823119475059457716
19 208254700595813407930382

List of values

[1, 2, 12, 108, 1180, 15300, 234374, 4190872, 86080572, 1999951380, 51874664446, 1486016035944, 46596167540806, 1587429536107688, 58385852010664650, 2305843009058576432, 97322383750732656572, 4371823119475059457716, 208254700595813407930382]

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

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