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.

A171682 Number of compositions of n with the smallest part in the first position.

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 10
6 20
7 37
8 72
9 140
10 275
11 540
12 1069
13 2118
14 4206
15 8365
16 16659
17 33204
18 66231
19 132179
20 263913
21 527119
22 1053113
23 2104428
24 4205987
25 8407382
26 16807410
27 33603024
28 67187111
29 134343790
30 268638648
31 537198557
32 1074270342
33 2148336463
34 4296343787
35 8592156886
36 17183457812
37 34365534564

List of values

[1, 2, 3, 6, 10, 20, 37, 72, 140, 275, 540, 1069, 2118, 4206, 8365, 16659, 33204, 66231, 132179, 263913, 527119, 1053113, 2104428, 4205987, 8407382, 16807410, 33603024, 67187111, 134343790, 268638648, 537198557, 1074270342, 2148336463, 4296343787, 8592156886, 17183457812, 34365534564]

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

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