Numbers n such that the hexagonal number H(n) is equal to the sum of the pentagonal numbers P(m) and P(m+1) for some m.
A245783
Numbers n such that the hexagonal number H(n) is equal to the sum of the pentagonal numbers P(m) and P(m+1) for some m.
Terms
- a(0) =1a(1) =2a(2) =57a(3) =166a(4) =5561a(5) =16242a(6) =544897a(7) =1591526a(8) =53394321a(9) =155953282a(10) =5232098537a(11) =15281830086a(12) =512692262281
External references
- oeis: A245783