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.

A241629 Number of compositions of n with exactly four descents.

Table of values

n a(n)
12 5
13 37
14 189
15 751
16 2558
17 7762
18 21577
19 55867
20 136478
21 317416
22 707817
23 1521755
24 3168262
25 6410970
26 12646075
27 24378923
28 46028497
29 85269218
30 155238256
31 278130152
32 490983234
33 854910432
34 1469679627
35 2496560526
36 4193815403
37 6971437570
38 11474937414
39 18712755604

List of values

[5, 37, 189, 751, 2558, 7762, 21577, 55867, 136478, 317416, 707817, 1521755, 3168262, 6410970, 12646075, 24378923, 46028497, 85269218, 155238256, 278130152, 490983234, 854910432, 1469679627, 2496560526, 4193815403, 6971437570, 11474937414, 18712755604]

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

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