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.

A249979 Number of length n+1 0..2*5 arrays with the sum of the absolute values of adjacent differences equal to n*5.

Table of values

n a(n)
1 12
2 90
3 728
4 6252
5 55372
6 508902
7 4598532
8 43752328
9 399919272
10 3872197278
11 35715136808
12 349291390860
13 3244120777620
14 31938382591862
15 298193263675024
16 2949970866347064
17 27653133418970008
18 274591500744039956

List of values

[12, 90, 728, 6252, 55372, 508902, 4598532, 43752328, 399919272, 3872197278, 35715136808, 349291390860, 3244120777620, 31938382591862, 298193263675024, 2949970866347064, 27653133418970008, 274591500744039956]

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

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