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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.

A193447 a(n) = ((p - 2)! + p - 1)/(p*(p - 1)) where p is the n-th prime.

Table of values

n a(n)
4 3
5 3299
6 255877
7 4807626353
8 1040021719579
9 100970241446066087
10 13409937746820630739862069
11 9507270961010432209186683871
12 7757618593382991688938927430572972973
13 12437732976339904486975781548721278876097561
14 18522993694996570934756402022946152638511627907

List of values

[3, 3299, 255877, 4807626353, 1040021719579, 100970241446066087, 13409937746820630739862069, 9507270961010432209186683871, 7757618593382991688938927430572972973, 12437732976339904486975781548721278876097561, 18522993694996570934756402022946152638511627907]

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

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