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.

A266105 Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.

Table of values

n a(n)
1 1
2 105
3 1012
4 4893
5 53442
6 841668
7 9880139
8 100419691
9 1161577640
10 14330198186
11 167677854928
12 1911970639884
13 22299927996030
14 263303415557409
15 3080790433186207
16 35842524252682997
17 418663357107133083

List of values

[1, 105, 1012, 4893, 53442, 841668, 9880139, 100419691, 1161577640, 14330198186, 167677854928, 1911970639884, 22299927996030, 263303415557409, 3080790433186207, 35842524252682997, 418663357107133083]

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

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