a(1) = greatest k such that H(k) - H(2) < 1/1 + 1/2; a(2) = greatest k such that H(k) - H(a(1)) < H(a(1)) - H(2); and for n>2, a(n) = greatest k such that H(k) - H(a(n-1)) < H(a(n-1)) - H(a(n-2)), where H = harmonic number.
A227728
a(1) = greatest k such that H(k) - H(2) < 1/1 + 1/2; a(2) = greatest k such that H(k) - H(a(1)) < H(a(1)) - H(2); and for n>2, a(n) = greatest k such that H(k) - H(a(n-1)) < H(a(n-1)) - H(a(n-2)), where H = harmonic number.
Terms
- a(0) =10a(1) =43a(2) =179a(3) =740a(4) =3054a(5) =12599a(6) =51971a(7) =214376a(8) =884278a(9) =3647546a(10) =15045706a(11) =62061794a(12) =255997704a(13) =1055960840a(14) =4355715996a(15) =17966823308a(16) =74111062350a(17) =305699536774
External references
- oeis: A227728