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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.

A344850 a(n) is the denominator of Catalan-Daehee number d(n).

Table of values

n a(n)
0 1
1 1
2 3
3 3
4 15
5 5
6 105
7 105
8 63
9 315
10 3465
11 495
12 6435
13 9009
14 15015
15 15015
16 255255
17 23205
18 37791
19 188955
20 101745
21 1119195
22 25741485
23 572033
24 42902475
25 79676025
26 42181425
27 42181425
28 155687805
29 40970475
30 1270084725
31 1270084725
32 665282475
33 173996955
34 6089893425
35 794333925

List of values

[1, 1, 3, 3, 15, 5, 105, 105, 63, 315, 3465, 495, 6435, 9009, 15015, 15015, 255255, 23205, 37791, 188955, 101745, 1119195, 25741485, 572033, 42902475, 79676025, 42181425, 42181425, 155687805, 40970475, 1270084725, 1270084725, 665282475, 173996955, 6089893425, 794333925]

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

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