plural of Stirling number

(mathematics) Stirling number of the first kind / (mathematics) Stirling number of the second kind

(mathematics) Any of a class of coefficients expressing rising factorials in terms of falling factorials.

plural of Lah number

numberless; endless or infinite

A number used to contact a particular fax machine.

(number theory) An integer which is one more than two raised to a power which is itself a power of two (i.e., is expressible in the form 2^(2ⁿ)+1 for some n>0); equivalently, a number that is one more than two raised to some power (is expressible as 2ⁿ+1) and is prime.

plural of Fermat number

plural of pancake number

(mathematics) In pancake sorting, the minimum number of flips required for a given number of pancakes.