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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.

A289769 Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 598", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 2
2 6
3 12
4 20
5 40
6 88
7 176
8 272
9 544
10 1760
11 3520
12 4416
13 8832
14 28032
15 56064
16 65792
17 131584
18 396800
19 793600
20 1332224
21 2664448
22 5986304
23 11972608
24 16846848
25 33693696
26 101638144
27 203276288
28 340869120
29 681738240
30 1533902848
31 3067805696
32 4295032832
33 8590065664

List of values

[1, 2, 6, 12, 20, 40, 88, 176, 272, 544, 1760, 3520, 4416, 8832, 28032, 56064, 65792, 131584, 396800, 793600, 1332224, 2664448, 5986304, 11972608, 16846848, 33693696, 101638144, 203276288, 340869120, 681738240, 1533902848, 3067805696, 4295032832, 8590065664]

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

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