Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 27.

A031615

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 27.

Terms

    a(0) =4649a(1) =9458a(2) =15457a(3) =15706a(4) =22621a(5) =31853a(6) =32569a(7) =41434a(8) =53189a(9) =54113a(10) =56458a(11) =66925a(12) =67961a(13) =81097a(14) =82237a(15) =99754a(16) =101653a(17) =102929a(18) =114869a(19) =115546a(20) =116906a(21) =118274a(22) =121034a(23) =121729a(24) =122426a(25) =137629a(26) =154505a(27) =160841a(28) =162445a(29) =164057

External references