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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.

A327976 Bitwise XOR of trajectories (centrally aligned) of rule 30, and its mirror image, rule 86, when both are started from a lone 1-bit, with the latter delayed by one step: a(n) = A110240(n) XOR 2*A265281(n-1).

Table of values

n a(n)
1 5
2 23
3 73
4 359
5 1233
6 6143
7 19225
8 93495
9 325729
10 1518895
11 4833289
12 23453735
13 81443089
14 398815039
15 1271974489
16 6168932215
17 21231239841
18 99197620591
19 314863189193
20 1541326542823
21 5312985402193
22 26258203294847
23 82884499362201
24 400683454289591
25 1406328980294113
26 6532877164215983
27 20744329255918985
28 100303645024039591

List of values

[5, 23, 73, 359, 1233, 6143, 19225, 93495, 325729, 1518895, 4833289, 23453735, 81443089, 398815039, 1271974489, 6168932215, 21231239841, 99197620591, 314863189193, 1541326542823, 5312985402193, 26258203294847, 82884499362201, 400683454289591, 1406328980294113, 6532877164215983, 20744329255918985, 100303645024039591]

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

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