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.

A325910 a(n) = ( (-1)^(n-1) * Sum_{k=0..n-1} (-1)^k*10^(2^k) - (1-(-1)^n)/2 )/9.

Table of values

n a(n)
0 0
1 1
2 10
3 1101
4 11110010
5 1111111100001101
6 11111111111111110000000011110010
7 1111111111111111111111111111111100000000000000001111111100001101

List of values

[0, 1, 10, 1101, 11110010, 1111111100001101, 11111111111111110000000011110010, 1111111111111111111111111111111100000000000000001111111100001101]

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

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