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

8128, 8191, 8208

Offset

1,1

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

Table of n, a(n) for n=1..3.

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.

Formula

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

Crossrefs

Cf. A000396, A000668, A005188.

Sequence in context: A025288 A025306 A151946 * A147633 A237145 A205211

Adjacent sequences: A229378 A229379 A229380 * A229382 A229383 A229384

Keyword

nonn,fini,full,bref,dumb

Author

Joe Sondow and Jonathan Sondow, Sep 23 2013

Status

approved