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.

A053512 Half the number of non-self-intersecting paths from one corner of an n X n grid to the opposite corner.

Table of values

n a(n)
2 1
3 6
4 92
5 4256
6 631408
7 287890282
8 394680026626
9 1633299243490821
10 20522104351316248402
11 784379015232375006607050
12 91206645757124024620735442618
13 32264019671635009481678592579241059
14 34725332380760680832137350774453679498244

List of values

[1, 6, 92, 4256, 631408, 287890282, 394680026626, 1633299243490821, 20522104351316248402, 784379015232375006607050, 91206645757124024620735442618, 32264019671635009481678592579241059, 34725332380760680832137350774453679498244]

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

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