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.

A164137 Number of binary strings of length n with equal numbers of 000 and 001 substrings.

Table of values

n a(n)
0 1
1 2
2 4
3 6
4 11
5 19
6 35
7 61
8 111
9 200
10 369
11 676
12 1256
13 2337
14 4392
15 8273
16 15686
17 29837
18 57038
19 109362
20 210448
21 406029
22 785573
23 1523217
24 2959853
25 5761671
26 11234619
27 21937768
28 42894822
29 83969696
30 164552423
31 322773812
32 633679446
33 1245032098
34 2447951456
35 4816241573

List of values

[1, 2, 4, 6, 11, 19, 35, 61, 111, 200, 369, 676, 1256, 2337, 4392, 8273, 15686, 29837, 57038, 109362, 210448, 406029, 785573, 1523217, 2959853, 5761671, 11234619, 21937768, 42894822, 83969696, 164552423, 322773812, 633679446, 1245032098, 2447951456, 4816241573]

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

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