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.

A266103 Number of 3 X n 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 16
3 64
4 161
5 736
6 3846
7 16103
8 62778
9 274466
10 1238762
11 5293041
12 22276043
13 96335136
14 419550430
15 1803305352
16 7726652568
17 33323635453
18 143929545318
19 619694522447
20 2666428933331
21 11491110825839
22 49536410438938

List of values

[1, 16, 64, 161, 736, 3846, 16103, 62778, 274466, 1238762, 5293041, 22276043, 96335136, 419550430, 1803305352, 7726652568, 33323635453, 143929545318, 619694522447, 2666428933331, 11491110825839, 49536410438938]

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

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