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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.

A138277 Total number of active nodes of the Rule 150 cellular automaton on an infinite Bethe lattice with coordination number 4 (with a single 1 as initial condition).

Table of values

n a(n)
0 1
1 5
2 13
3 49
4 109
5 473
6 1081
7 4037
8 8749
9 37913
10 88465
11 325021
12 717337
13 3108461
14 7095613
15 26490289
16 57395629
17 248714393
18 580333585
19 2132141341
20 4707150193
21 20397650837
22 46548642709
23 173816036825
24 376630110937
25 1632063814061
26 3808148899477
27 13991111158153

List of values

[1, 5, 13, 49, 109, 473, 1081, 4037, 8749, 37913, 88465, 325021, 717337, 3108461, 7095613, 26490289, 57395629, 248714393, 580333585, 2132141341, 4707150193, 20397650837, 46548642709, 173816036825, 376630110937, 1632063814061, 3808148899477, 13991111158153]

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

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