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.

A373950 Number of integer compositions of n containing two adjacent ones and no other runs.

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 2
5 4
6 5
7 14
8 26
9 46
10 92
11 176
12 323
13 610
14 1145
15 2108
16 3912
17 7240
18 13289
19 24418
20 44778
21 81814
22 149356
23 272222
24 495144
25 899554
26 1632176
27 2957332
28 5352495
29 9677266
30 17477761
31 31536288
32 56852495
33 102403134
34 184302331
35 331452440
36 595659234
37 1069742760

List of values

[0, 0, 1, 0, 2, 4, 5, 14, 26, 46, 92, 176, 323, 610, 1145, 2108, 3912, 7240, 13289, 24418, 44778, 81814, 149356, 272222, 495144, 899554, 1632176, 2957332, 5352495, 9677266, 17477761, 31536288, 56852495, 102403134, 184302331, 331452440, 595659234, 1069742760]

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

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