406801

Appears in sequences

• Numerators of continued fraction convergents to sqrt(226).at n=3A041420
• Numerators of continued fraction convergents to sqrt(904).at n=3A042746
• Initial terms of chains consisting of four consecutive integers, for none of which is the value of sigma-function divisible by six.at n=19A097020
• a(n) = 2*a(n-1) + 4*a(n-2) - 6*a(n-3) - 3*a(n-4) for n > 3, with a(0)=1, a(1)=2, a(2)=4, a(3)=8.at n=16A137255
• a(n) = 1250*n^2 + 100*n + 1.at n=17A154375
• a(n) = 648*n^2 + 72*n + 1.at n=24A154515
• a(n) = 5000*n^2 + 200*n + 1.at n=8A157511