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.

A063888 Number of n-step walks on a cube lattice starting from the origin but not returning to it at any stage.

Table of values

n a(n)
0 1
1 6
2 30
3 180
4 1026
5 6156
6 35940
7 215640
8 1271106
9 7626636
10 45182124
11 271092744
12 1610875836
13 9665255016
14 57546367704
15 345278206224
16 2058613385346
17 12351680312076
18 73717606430364
19 442305638582184
20 2641804748619732

List of values

[1, 6, 30, 180, 1026, 6156, 35940, 215640, 1271106, 7626636, 45182124, 271092744, 1610875836, 9665255016, 57546367704, 345278206224, 2058613385346, 12351680312076, 73717606430364, 442305638582184, 2641804748619732]

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

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