68258

Appears in sequences

• a(n) is the largest number that can be expressed as the sum of three triangular numbers in exactly n ways.at n=25A330810
• a(n) is the largest number that can be expressed as the sum of three positive triangular numbers in exactly n ways.at n=26A330811
• Let m(k) be the index of the largest triangular number <= k; then a(n) is the smallest number k that can be written as the sum of three triangular numbers if the largest is the (m(k)-n)-th triangular number, but no larger.at n=17A331753