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.

A262474 Number of (4+1)X(n+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits.

Table of values

n a(n)
1 7
2 17
3 115
4 457
5 3055
6 16081
7 107731
8 655001
9 4427407
10 28848817
11 196901395
12 1326556777
13 9126593455
14 62528586641
15 432702173011
16 2991144099001
17 20781922758607
18 144379920476017
19 1005798678435475
20 7008103279484297

List of values

[7, 17, 115, 457, 3055, 16081, 107731, 655001, 4427407, 28848817, 196901395, 1326556777, 9126593455, 62528586641, 432702173011, 2991144099001, 20781922758607, 144379920476017, 1005798678435475, 7008103279484297]

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

Content is available under The OEIS End-User License Agreement.