Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 7.
A031420
Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 7.
Terms
- a(0) =349a(1) =778a(2) =1105a(3) =1237a(4) =1306a(5) =1565a(6) =1721a(7) =2473a(8) =3361a(9) =3706a(10) =3889a(11) =4133a(12) =4985a(13) =5261a(14) =5545a(15) =6217a(16) =6841a(17) =6929a(18) =7165a(19) =7253a(20) =7418a(21) =7754a(22) =8021a(23) =8273a(24) =8369a(25) =8629a(26) =9089a(27) =9274a(28) =9461a(29) =10034
External references
- oeis: A031420