Second member of Diophantine pair (m,k) that satisfies 7*(m^2 + m) = k^2 + k; a(n) = k.
A077401
Second member of Diophantine pair (m,k) that satisfies 7*(m^2 + m) = k^2 + k; a(n) = k.
Terms
- a(0) =0a(1) =6a(2) =14a(3) =104a(4) =231a(5) =1665a(6) =3689a(7) =26543a(8) =58800a(9) =423030a(10) =937118a(11) =6741944a(12) =14935095a(13) =107448081a(14) =238024409a(15) =1712427359a(16) =3793455456a(17) =27291389670a(18) =60457262894a(19) =434949807368a(20) =963522750855
External references
- oeis: A077401