L, a list, a list of pairs i,j of integers such that j <= d for all terms, and a is the sum of the binomial(i,j).
Description
Yields the d-th Macaulay representation of the integer a. Given a positive integer d, each positive integer a can be uniquely represented as a sum of binomials binomial(bd,d) + binomial(bd-1,d-1) + ... + binomial(b1,1), where bd > bd-1 > ... > b1 >= 0.