Numbers m such that the numerator of Sum_{i=1..m} (i-1)/i is prime.
A091815
Numbers m such that the numerator of Sum_{i=1..m} (i-1)/i is prime.
Terms
- a(0) =3a(1) =4a(2) =5a(3) =6a(4) =7a(5) =9a(6) =11a(7) =13a(8) =15a(9) =16a(10) =17a(11) =22a(12) =61a(13) =69a(14) =73a(15) =97a(16) =120a(17) =125a(18) =138a(19) =141a(20) =158a(21) =180a(22) =183a(23) =220a(24) =224a(25) =317a(26) =370a(27) =457a(28) =517a(29) =546
External references
- oeis: A091815