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+4)/m < s for some integer k.
A024847
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+4)/m < s for some integer k.
Terms
- a(0) =8a(1) =34a(2) =76a(3) =134a(4) =208a(5) =298a(6) =404a(7) =526a(8) =664a(9) =818a(10) =1009a(11) =1198a(12) =1427a(13) =1651a(14) =1918a(15) =2176a(16) =2481a(17) =2773a(18) =3116a(19) =3442a(20) =3823a(21) =4183a(22) =4602a(23) =4996a(24) =5453a(25) =5881a(26) =6376a(27) =6838a(28) =7371a(29) =7867
External references
- oeis: A024847