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 31.
A031619
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 31.
Terms
- a(0) =6109a(1) =12149a(2) =19681a(3) =20530a(4) =30397a(5) =40973a(6) =55921a(7) =57346a(8) =70514a(9) =71578a(10) =73189a(11) =87977a(12) =89165a(13) =91565a(14) =110665a(15) =111997a(16) =128693a(17) =132298a(18) =133754a(19) =151169a(20) =151946a(21) =155861a(22) =157441a(23) =159029a(24) =159826a(25) =178813a(26) =203341a(27) =206957a(28) =212441a(29) =234250
External references
- oeis: A031619