a(n) = smallest odd number 2m+1 such that the partial sum Sum_{j=0..m} 1/(2j+1) of the odd harmonic series is >= n.
A092317
a(n) = smallest odd number 2m+1 such that the partial sum Sum_{j=0..m} 1/(2j+1) of the odd harmonic series is >= n.
Terms
- a(0) =1a(1) =15a(2) =113a(3) =837a(4) =6183a(5) =45691a(6) =337607a(7) =2494595a(8) =18432707a(9) =136200301a(10) =1006391657a(11) =7436284415a(12) =54947122715a(13) =406007372211
External references
- oeis: A092317