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.

A057863 a(n) = Product_{k=1..n} (2k-1)!!.

Table of values

n a(n)
0 1
1 1
2 3
3 45
4 4725
5 4465125
6 46414974375
7 6272287562165625
8 12714083695698776015625
9 438120013555654794702228515625
10 286849911214281324754704976473779296875
11 3943988517696329309474874414036059896739501953125

List of values

[1, 1, 3, 45, 4725, 4465125, 46414974375, 6272287562165625, 12714083695698776015625, 438120013555654794702228515625, 286849911214281324754704976473779296875, 3943988517696329309474874414036059896739501953125]

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

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