Template:Sequence of the Day for February 21

Intended for: February 21, 2013

Timetable

• First draft entered by Alonso del Arte on April 6, 2012 ✓
• Draft reviewed by Daniel Forgues on February 21, 2016 ✓
• Draft to be approved by January 21, 2013

Yesterday's SOTD * Tomorrow's SOTD

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A088751: Decimal expansion of

x

, the real root of the equation

1 + ∑ ∞ k  = 1  pk x k = 0

, where

pn

is the

n

th prime.

− 0.68677783446063...

This is the inverse of Backhouse’s constant (A072508), a number that is somewhat harder to compute than this one.