Sanakirja.org

Määritelmät

Substantiivi

1. (number theory) A (hypothetical) prime number ${\displaystyle p}$ such that ${\displaystyle p^{2}}$ divides ${\displaystyle F_{\pi (p)}}$, where ${\displaystyle F_{n}}$ is the Fibonacci sequence and ${\displaystyle \pi (p)}$ is the ${\displaystyle p}$th Pisano period (the period length of the Fibonacci sequence reduced modulo ${\displaystyle p}$).