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 25.

A031613

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 25.

Terms

    a(0) =1453a(1) =7793a(2) =13306a(3) =13537a(4) =19165a(5) =20285a(6) =28393a(7) =35569a(8) =37861a(9) =46514a(10) =47378a(11) =47813a(12) =57961a(13) =58925a(14) =60877a(15) =83473a(16) =84629a(17) =85793a(18) =86378a(19) =88738a(20) =100481a(21) =101114a(22) =101749a(23) =104309a(24) =104954a(25) =105601a(26) =114973a(27) =116329a(28) =123229a(29) =131885

External references