Numbers n such that the sum of the heptagonal numbers H(n) and H(n+1) is equal to the hexagonal number X(m) for some m.
A252076
Numbers n such that the sum of the heptagonal numbers H(n) and H(n+1) is equal to the hexagonal number X(m) for some m.
Terms
- a(0) =0a(1) =486a(2) =701100a(3) =1010986002
External references
- oeis: A252076