131002976

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=17A002486
• Denominators of the other-side convergents to Pi.at n=14A259590
• 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=26A325159
• Numbers k such that ceiling(Pi/arctan(1/k)) = ceiling(k*Pi)+1.at n=31A332045
• Denominators of approximations j/k for Pi such that abs(j/k - Pi)*sqrt(5)*k^2 < 1.at n=20A346534