Least k such that n <= Sum_{i=1..k} 1/A258252(i), where A258252 are the numbers having lowest possible denominators for the sums of reciprocals.
A258255
Least k such that n <= Sum_{i=1..k} 1/A258252(i), where A258252 are the numbers having lowest possible denominators for the sums of reciprocals.
Terms
- a(0) =1a(1) =4a(2) =14a(3) =46a(4) =153a(5) =535a(6) =1855a(7) =6449a(8) =22460a(9) =81237
External references
- oeis: A258255