a(n) = denominator of the continued fraction which has the positive integers which are <= n and are coprime to n as its terms. The terms are written in order from n-1 for the integer part, to 1 for the final term of the continued fraction.
A127616
a(n) = denominator of the continued fraction which has the positive integers which are <= n and are coprime to n as its terms. The terms are written in order from n-1 for the integer part, to 1 for the final term of the continued fraction.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =10a(5) =1a(6) =225a(7) =21a(8) =489a(9) =29a(10) =740785a(11) =43a(12) =83120346a(13) =2144a(14) =111382a(15) =200683a(17) =6270a(19) =658073a(20) =4282119239a(21) =88713109a(23) =2040581a(25) =36510389904
External references
- oeis: A127616