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.

A303528 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 16
2 21
3 95
4 340
5 1758
6 13031
7 87730
8 569770
9 4036330
10 30394943
11 222697188
12 1602691484
13 11764661177
14 87557106997
15 645627405743
16 4729643084580
17 34840151966126
18 257693611496166
19 1900371011202758
20 13983289362523029

List of values

[16, 21, 95, 340, 1758, 13031, 87730, 569770, 4036330, 30394943, 222697188, 1602691484, 11764661177, 87557106997, 645627405743, 4729643084580, 34840151966126, 257693611496166, 1900371011202758, 13983289362523029]

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

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