73852

Appears in sequences

• a(n) = 6*a(n-2) - a(n-4).at n=14A006452
• a(n) = 6*a(n-1) - a(n-2), n >= 2, a(0)=1, a(1)=2.at n=7A038725
• Antidiagonal sums in A101321.at n=36A101338
• a(2n) = A001653(n) (Numbers n such that 2*n^2 - 1 is a square), a(2n+1) = A038725(n+1).at n=13A117719
• Dispersion of the Beatty sequence ([r*n]: n >= 1), where r = 3 + 8^(1/2): square array D(n,m) (n, m >= 1), read by ascending antidiagonals.at n=34A120858
• Sequences A006452 and A216134 interlaced.at n=28A216162
• Largest number in a 6-tuple (a,b,c,d,e,f) of positive integers satisfying the Markoff(6) equation a^2 + b^2 + c^2 + d^2 + e^2 + f^2 = 3*a*b*c*d*e*f.at n=48A227204
• a(n) = sqrt(A299921(n)).at n=20A301318