75865156
domain: N
Appears in sequences
- Least k such that A052343(k)=n.at n=25A052345
- Smallest number which is the sum of two positive triangular numbers in exactly n different ways.at n=25A052346
- a(n) is the smallest nonnegative integer that can be written as a sum of two distinct nonzero triangular numbers in exactly n ways or -1 if no such integer exists.at n=25A342326