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.

A269616 Number of length-n 0..5 arrays with no repeated value differing from the previous repeated value by other than plus two, zero or minus 1.

Table of values

n a(n)
1 6
2 36
3 216
4 1275
5 7440
6 43013
7 246798
8 1407232
9 7982022
10 45074673
11 253574688
12 1421878274
13 7950451524
14 44345786735
15 246818403470
16 1371136321437
17 7604288654552
18 42110933628975
19 232895831580810
20 1286536158378699

List of values

[6, 36, 216, 1275, 7440, 43013, 246798, 1407232, 7982022, 45074673, 253574688, 1421878274, 7950451524, 44345786735, 246818403470, 1371136321437, 7604288654552, 42110933628975, 232895831580810, 1286536158378699]

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

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