2963561

Appears in sequences

• a(1) = a(2) = a(3) = a(4) = a(5) = a(6) = 1; for n>1: a(n+6) = (a(n))^2 + (a(n+1))^2 + (a(n+2))^2 + (a(n+3))^2 + (a(n+4))^2 + (a(n+5))^2.at n=9A112960
• Generalized Markoff numbers: largest of 7-tuple of positive numbers a, b, c, d, e, f, g satisfying the Markoff(7) equation a^2+b^2+c^2+d^2+e^2+f^2+g^2 = 7abcdefg.at n=12A227214