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.

A050341 Number of factorizations with 3 levels of parentheses indexed by prime signatures. A050340(A025487).

Table of values

n a(n)
1 1
2 1
3 5
4 5
5 15
6 25
7 55
8 105
9 35
10 170
11 145
12 425
13 205
14 571
15 660
16 1611
17 1010
18 1789
19 2938
20 1345
21 5941
22 315
23 3437
24 4596
25 5727
26 12047
27 7317
28 21190
29 2130
30 16533
31 19496
32 17836
33 47949
34 36232
35 74020
36 11940
37 73831
38 9841
39 78981
40 55627
41 43590
42 183208
43 15982

List of values

[1, 1, 5, 5, 15, 25, 55, 105, 35, 170, 145, 425, 205, 571, 660, 1611, 1010, 1789, 2938, 1345, 5941, 315, 3437, 4596, 5727, 12047, 7317, 21190, 2130, 16533, 19496, 17836, 47949, 36232, 74020, 11940, 73831, 9841, 78981, 55627, 43590, 183208, 15982]

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

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