cp's OEIS Frontend

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.

A133046 Starting from the standard 12 against 12 starting position in checkers, the sequence gives the number of distinct move sequences after n moves.

Table of values

n a(n)
0 1
1 7
2 49
3 302
4 1469
5 7361
6 36768
7 179740
8 845931
9 3963680
10 18391564
11 85242128
12 388623673
13 1766623630
14 7978439499
15 36263167175
16 165629569428
17 758818810990
18 3493881706141
19 16114043592799
20 74545030871553
21 345100524480819
22 1602372721738102
23 7437536860666213
24 34651381875296000
25 161067479882075800
26 752172458688067137
27 3499844183628002605
28 16377718018836900735
29 76309690522352444005

List of values

[1, 7, 49, 302, 1469, 7361, 36768, 179740, 845931, 3963680, 18391564, 85242128, 388623673, 1766623630, 7978439499, 36263167175, 165629569428, 758818810990, 3493881706141, 16114043592799, 74545030871553, 345100524480819, 1602372721738102, 7437536860666213, 34651381875296000, 161067479882075800, 752172458688067137, 3499844183628002605, 16377718018836900735, 76309690522352444005]

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

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