a(n) = least m such that if r and s in {1/1, 1/3, 1/5, ..., 1/(2n-1)} satisfy r < s, then r < k/m < (k+2)/m < s for some integer k.
A024841
a(n) = least m such that if r and s in {1/1, 1/3, 1/5, ..., 1/(2n-1)} satisfy r < s, then r < k/m < (k+2)/m < s for some integer k.
Terms
- a(0) =5a(1) =19a(2) =41a(3) =71a(4) =109a(5) =155a(6) =222a(7) =287a(8) =376a(9) =460a(10) =571a(11) =673a(12) =806a(13) =926a(14) =1081a(15) =1219a(16) =1396a(17) =1552a(18) =1751a(19) =1926a(20) =2147a(21) =2380a(22) =2584a(23) =2839a(24) =3106a(25) =3338a(26) =3627a(27) =3928a(28) =4188a(29) =4511
External references
- oeis: A024841