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.

A099974 Write log(2) as a binary fraction; read this from left to right and whenever a 1 appears, note the integer formed by reading leftwards from that 1.

Table of values

n a(n)
0 1
1 5
2 13
3 141
4 653
5 1677
6 3725
7 20109
8 544397
9 2641549
10 6835853
11 15224461
12 32001677
13 65556109
14 132664973
15 266882701
16 803753613
17 1877495437
18 4024979085
19 8319946381
20 16909880973
21 51269619341
22 601025433229
23 1700537061005

List of values

[1, 5, 13, 141, 653, 1677, 3725, 20109, 544397, 2641549, 6835853, 15224461, 32001677, 65556109, 132664973, 266882701, 803753613, 1877495437, 4024979085, 8319946381, 16909880973, 51269619341, 601025433229, 1700537061005]

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

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