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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.

A060221 Number of orbits of length n under the full 18-shift (whose periodic points are counted by A001027).

Table of values

n a(n)
1 18
2 153
3 1938
4 26163
5 377910
6 5667681
7 87460002
8 1377481950
9 22039920504
10 357046533675
11 5842582734474
12 96402612275775
13 1601766528128550
14 26772383354990049
15 449776041098370870
16 7589970692848393200
17 128583032925805678350
18 2185911559727674682148
19 37275544492386193492506

List of values

[18, 153, 1938, 26163, 377910, 5667681, 87460002, 1377481950, 22039920504, 357046533675, 5842582734474, 96402612275775, 1601766528128550, 26772383354990049, 449776041098370870, 7589970692848393200, 128583032925805678350, 2185911559727674682148, 37275544492386193492506]

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

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