a(n) = least m such that if r and s in {1/1, 1/4, 1/7, ..., 1/(3n-2)} satisfy r < s, then r < k/m < (k+1)/m < s for some integer k.
A024836
a(n) = least m such that if r and s in {1/1, 1/4, 1/7, ..., 1/(3n-2)} satisfy r < s, then r < k/m < (k+1)/m < s for some integer k.
Terms
- a(0) =3a(1) =13a(2) =29a(3) =51a(4) =92a(5) =131a(6) =193a(7) =248a(8) =331a(9) =401a(10) =505a(11) =590a(12) =715a(13) =852a(14) =963a(15) =1121a(16) =1291a(17) =1427a(18) =1618a(19) =1821a(20) =1981a(21) =2205a(22) =2441a(23) =2625a(24) =2882a(25) =3151a(26) =3361a(27) =3651a(28) =3953a(29) =4267
External references
- oeis: A024836