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.

A354758 a(n) = Product_{k = ceiling(n/2)..n-1} A090252(k).

Table of values

n a(n)
1 1
2 1
3 2
4 6
5 15
6 60
7 140
8 1260
9 2772
10 36036
11 153153
12 1225224
13 3325608
14 76488984
15 212469400
16 4461857400
17 11763078600
18 364655436600
19 1037865473400
20 42552484409400
21 107632754682600
22 5058739470082200
23 33514148989294575
24 536226383828713200
25 1665124033994425200

List of values

[1, 1, 2, 6, 15, 60, 140, 1260, 2772, 36036, 153153, 1225224, 3325608, 76488984, 212469400, 4461857400, 11763078600, 364655436600, 1037865473400, 42552484409400, 107632754682600, 5058739470082200, 33514148989294575, 536226383828713200, 1665124033994425200]

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

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