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 66.

A031654

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 66.

Terms

    a(0) =1090a(1) =10009a(2) =27581a(3) =89482a(4) =90682a(5) =134077a(6) =135545a(7) =185069a(8) =186793a(9) =246241a(10) =316133a(11) =321778a(12) =487645a(13) =581173a(14) =582698a(15) =585754a(16) =590353a(17) =593429a(18) =682901a(19) =686209a(20) =687866a(21) =691186a(22) =696181a(23) =699521a(24) =796393a(25) =814333a(26) =930137a(27) =937865a(28) =941741a(29) =1049537

External references