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 18.
A031606
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 18.
Terms
- a(0) =82a(1) =2141a(2) =4274a(3) =6970a(4) =7306a(5) =10525a(6) =10937a(7) =14569a(8) =15053a(9) =18994a(10) =20389a(11) =24314a(12) =25253a(13) =25889a(14) =30637a(15) =31337a(16) =36541a(17) =43793a(18) =47618a(19) =51701a(20) =52154a(21) =52609a(22) =53066a(23) =54449a(24) =55381a(25) =62233a(26) =70537a(27) =71597a(28) =72665a(29) =80485
External references
- oeis: A031606