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.

A066178 Number of binary bit strings of length n with no block of 8 or more 0's. Nonzero heptanacci numbers, A122189.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 8
5 16
6 32
7 64
8 127
9 253
10 504
11 1004
12 2000
13 3984
14 7936
15 15808
16 31489
17 62725
18 124946
19 248888
20 495776
21 987568
22 1967200
23 3918592
24 7805695
25 15548665
26 30972384
27 61695880
28 122895984
29 244804400
30 487641600

List of values

[1, 1, 2, 4, 8, 16, 32, 64, 127, 253, 504, 1004, 2000, 3984, 7936, 15808, 31489, 62725, 124946, 248888, 495776, 987568, 1967200, 3918592, 7805695, 15548665, 30972384, 61695880, 122895984, 244804400, 487641600]

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

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