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.

A139683 Number of n X n symmetric binary matrices with no row sum greater than 7.

Table of values

n a(n)
0 1
1 2
2 8
3 64
4 1024
5 32768
6 2097152
7 268435456
8 66628946641
9 29707592691510
10 21634670753754060
11 23709506474859569328
12 36821021837919664452090
13 77635187673471762914463552
14 215313862348697780762374273824
15 766493362781127793638943080523776

List of values

[1, 2, 8, 64, 1024, 32768, 2097152, 268435456, 66628946641, 29707592691510, 21634670753754060, 23709506474859569328, 36821021837919664452090, 77635187673471762914463552, 215313862348697780762374273824, 766493362781127793638943080523776]

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

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