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.

A262466 Number of (n+1) X (2+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 1
2 3
3 9
4 17
5 37
6 107
7 321
8 865
9 2449
10 7299
11 21897
12 64625
13 192277
14 576299
15 1728897
16 5174977
17 15507361
18 46516227
19 139548681
20 418517201
21 1255358341
22 3766010603
23 11298031809
24 33892678177
25 101675908657
26 305027017347
27 915081052041

List of values

[1, 3, 9, 17, 37, 107, 321, 865, 2449, 7299, 21897, 64625, 192277, 576299, 1728897, 5174977, 15507361, 46516227, 139548681, 418517201, 1255358341, 3766010603, 11298031809, 33892678177, 101675908657, 305027017347, 915081052041]

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

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