Numbers k such that the continued fraction for sqrt(k) has even period 2*m and the m-th term of the periodic part is 9.
A031412
Numbers k such that the continued fraction for sqrt(k) has even period 2*m and the m-th term of the periodic part is 9.
Terms
- a(0) =83a(1) =103a(2) =107a(3) =119a(4) =328a(5) =352a(6) =384a(7) =416a(8) =424a(9) =480a(10) =735a(11) =795a(12) =807a(13) =879a(14) =951a(15) =1011a(16) =1083a(17) =1304a(18) =1432a(19) =1496a(20) =1544a(21) =1688a(22) =1816a(23) =1928a(24) =2035a(25) =2215a(26) =2315a(27) =2335a(28) =2435a(29) =2515
External references
- oeis: A031412