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.

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A137149 a(n) = (prime(n)-2)!.

Original entry on oeis.org

1, 1, 6, 120, 362880, 39916800, 1307674368000, 355687428096000, 51090942171709440000, 10888869450418352160768000000, 8841761993739701954543616000000
Offset: 1

Views

Author

Artur Jasinski, Jan 23 2008

Keywords

Comments

Old definition was "a(n) = prime(n)!/(prime(n)*EulerPhi(prime(n)))".
Degree of Lagrange resolvent of polynomial prime degree. Ratio: degree of symmetric group of prime order n divided by order metacyclic group of prime order n. For degree of Lagrange resolvent of polynomial not prime degree see A137150.

Links

Crossrefs

Cf. A058161, A137150.

Programs

  • Magma
    [Factorial(NthPrime(n)-2): n in [1..15]]; // Vincenzo Librandi, May 04 2014
  • Mathematica
    Table[(Prime[n]-2)!, {n, 1, 15}] (* Bruno Berselli, May 04 2014 *)

Extensions

New name from Vincenzo Librandi, May 04 2014
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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