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.

A269353 Expansion of 1/(1-2x/(1-3x/(1-5x/(1-7x/(1-11x/...))))) where 2,3,5,7,11,... are the prime numbers.

Table of values

n a(n)
0 1
1 2
2 10
3 80
4 910
5 14180
6 294820
7 7898900
8 262166950
9 10401023300
10 480352145980
11 25403319156500
12 1524514142067820
13 103259722304891000
14 7855753426977689320
15 667222680003329539400
16 62774912079259300426030
17 6482982674137778455277720
18 728040412975153836997647580

List of values

[1, 2, 10, 80, 910, 14180, 294820, 7898900, 262166950, 10401023300, 480352145980, 25403319156500, 1524514142067820, 103259722304891000, 7855753426977689320, 667222680003329539400, 62774912079259300426030, 6482982674137778455277720, 728040412975153836997647580]

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

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