a(n) is the least n-gonal number that can be expressed as the difference of two positive n-gonal numbers in exactly n ways.
A368075
a(n) is the least n-gonal number that can be expressed as the difference of two positive n-gonal numbers in exactly n ways.
Terms
- a(0) =15a(1) =144a(2) =10045a(3) =21945a(4) =220077a(5) =99008
External references
- oeis: A368075