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 1 for the integer part, to n-1 for the final term of the continued fraction.
A127615
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 1 for the integer part, to n-1 for the final term of the continued fraction.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =30a(5) =5a(6) =972a(7) =115a(8) =2751a(9) =201a(10) =5225670a(11) =401a(12) =701216922a(13) =21376a(14) =1084178a(15) =2304261a(17) =89634a(19) =9512947a(20) =59351535853a(21) =1422376141a(23) =39380419
External references
- oeis: A127615