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 40.
A031628
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 40.
Terms
- a(0) =401a(1) =10429a(2) =20498a(3) =32842a(4) =33937a(5) =68813a(6) =90826a(7) =92641a(8) =94474a(9) =178525a(10) =180217a(11) =213973a(12) =214898a(13) =216754a(14) =251626a(15) =252629a(16) =253634a(17) =254641a(18) =256661a(19) =257674a(20) =259706a(21) =262769a(22) =344237a(23) =346585a(24) =348941a(25) =353677a(26) =386602a(27) =392837a(28) =396602a(29) =400385
External references
- oeis: A031628