A229381 The Simpsons's perfect number, Mersenne prime, and narcissistic number.

8128, 8191, 8208

Offset: 1

Author

Joe Sondow and Jonathan Sondow, Sep 23 2013

Keywords

• nonn
• fini
• full
• bref
• dumb

Comments

The perfect number 8128, Mersenne prime 8191, and narcissistic number 8208 appeared together on the screen in the "Marge and Homer Turn a Couple Play" episode of Season 17 of The Simpsons.

References

• S. Singh, The Simpsons and Their Mathematical Secrets, Bloomsbury Publishing, London, 2013, pp. 93-96, ISBN 9781408835302 / 9781408843734.

Links

• C. Goff, Animating Popular Mathematics: "The Simpsons and Their Mathematical Secrets", AMS Notices, Vol. 62, No. 1 (2015), 40-44.
• Simon Singh, The Simpsons' secret formula: it's written by maths geeks, The Guardian, 21 September 2013.

Crossrefs

Cf. A000396, A000668, A005188.

Formula

a(1) = A000396(4), a(2) = A000668(5), a(3) = A005188(15).