a(n) is the least n-gonal number that is the sum of two or more consecutive nonzero n-gonal numbers in more than one way, or -1 if no such number exists.
A360762
a(n) is the least n-gonal number that is the sum of two or more consecutive nonzero n-gonal numbers in more than one way, or -1 if no such number exists.
Terms
- a(0) =9a(1) =12880a(2) =20449a(3) =10764222a(4) =794629045a(5) =33205080888a(6) =5985a(7) =13925100
External references
- oeis: A360762