1005993

Appears in sequences

• a(n) = 2nd elementary symmetric function of the first n+1 odd positive integers.at n=36A024196
• Irregular triangle read by rows: T(n,k) (n >= 4, 4 <= k <= A384502(n)) is the smallest n-digit number m with k distinct prime factors, such that these factors can be divided into two subsets of at least two elements each, both summing to the same value. If no such number exists, T(n,k) = -1.at n=8A383858