Generalized Markoff numbers: union of numbers a, b, c, d satisfying the Markoff(4) equation a^2 + b^2 + c^2 + d^2 = 4*a*b*c*d.

A075276

Generalized Markoff numbers: union of numbers a, b, c, d satisfying the Markoff(4) equation a^2 + b^2 + c^2 + d^2 = 4*a*b*c*d.

Terms

    a(0) =1a(1) =3a(2) =11a(3) =41a(4) =131a(5) =153a(6) =571a(7) =1561a(8) =1803a(9) =2131a(10) =5761a(11) =7953a(12) =17291a(13) =18601a(14) =25091a(15) =29681a(16) =79291a(17) =110771a(18) =221651a(19) =253353a(20) =295681a(21) =349451a(22) =413403a(23) =817961a(24) =1542841a(25) =2282281a(26) =2453891a(27) =2641211a(28) =3018753a(29) =3252611

External references