A009571 Least m such that if a/b < c/d are Farey fractions of order n then there exists k such that a/b < k/m < c/d, k/m reduced.

2, 3, 5, 7, 13, 17, 31, 31, 43, 59, 73, 83, 101, 137, 149, 157, 197, 197, 227, 257, 293, 307, 367, 383, 421, 463, 509, 557, 577, 653, 677, 703, 757, 877, 907, 967, 997, 1061, 1091, 1193, 1229, 1297, 1373, 1447, 1483, 1601, 1643, 1723, 1811, 1949, 1987, 2027, 2213

Offset

1,1

Links

Table of n, a(n) for n=1..53.

Crossrefs

Sequence in context: A350443 A152449 A048975 * A087520 A117159 A134873

Adjacent sequences: A009568 A009569 A009570 * A009572 A009573 A009574

Keyword

nonn

Author

David W. Wilson

Status

approved