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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.

A336726 Number of n-step self-avoiding walks on the half-Manhattan lattice with no non-contiguous adjacencies.

Table of values

n a(n)
0 1
1 3
2 7
3 13
4 25
5 47
6 89
7 169
8 321
9 599
10 1125
11 2097
12 3925
13 7317
14 13667
15 25389
16 47313
17 87781
18 163265
19 302617
20 562023
21 1040465
22 1929879
23 3569627
24 6613725
25 12223777
26 22626357
27 41790173
28 77289525
29 142665435
30 263661315
31 486420171
32 898372311
33 1656580751
34 3057774587
35 5636030345

List of values

[1, 3, 7, 13, 25, 47, 89, 169, 321, 599, 1125, 2097, 3925, 7317, 13667, 25389, 47313, 87781, 163265, 302617, 562023, 1040465, 1929879, 3569627, 6613725, 12223777, 22626357, 41790173, 77289525, 142665435, 263661315, 486420171, 898372311, 1656580751, 3057774587, 5636030345]

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

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