1963319607

Appears in sequences

• Apart from two leading terms (which are present by convention), denominators of convergents to Pi (A002485 and A046947 give numerators).at n=20A002486
• Numbers k such that (Pi/2)*k^2*sin(1/k) < floor(Pi*k/2).at n=2A053431
• Greedy frac multiples of Pi: a(1)=1, Sum_{n>=1} frac(a(n)*Pi) = 1.at n=14A079938
• Denominators of convergents to Pi/2.at n=17A096463
• Values of n where A022844(n) = floor(n*Pi) differs from A120701(n) = floor(Pi/arcsin(1/n)).at n=4A120702
• Denominators of convergents to 2*Pi.at n=16A242859
• Denominators of convergents to Pi using best rational approximation whose denominator is between consecutive powers of 2: [2^n, 2^(n+1)-1], where n = 0, 1, 2, ...at n=30A325159
• Minimal denominator among the fractions with n-digit numerator and n-digit denominator that best approximate Pi.at n=9A327361
• Denominators of approximations j/k for Pi such that abs(j/k - Pi)*sqrt(5)*k^2 < 1.at n=23A346534
• a(n) is the denominator of the rational number with the smallest denominator that lies within 1/10^n of Pi.at n=19A360367
• Intersection of A002486 and A360367.at n=13A360370