Smallest number k such that the numerator of the generalized harmonic number H(k,n) = Sum_{i=1..k} 1/i^n is a prime.
A125503
Smallest number k such that the numerator of the generalized harmonic number H(k,n) = Sum_{i=1..k} 1/i^n is a prime.
Terms
- a(0) =2a(1) =2a(2) =3a(3) =2a(4) =23a(5) =73a(6) =15a(7) =2a(8) =3a(9) =5a(10) =13a(11) =57a(12) =3a(13) =171a(14) =5a(15) =2a(16) =21a(17) =7a(18) =55a(19) =8902a(20) =26a(21) =1298a(22) =115a(23) =139a(24) =3a(25) =2019a(26) =3a(27) =4a(28) =3a(29) =15
External references
- oeis: A125503