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 72.
A031660
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 72.
Terms
- a(0) =33149a(1) =64058a(2) =65074a(3) =106357a(4) =221069a(5) =222953a(6) =292906a(7) =293989a(8) =299434a(9) =376058a(10) =378514a(11) =380978a(12) =382213a(13) =470957a(14) =473705a(15) =578041a(16) =692753a(17) =694418a(18) =697754a(19) =701098a(20) =702773a(21) =812426a(22) =817841a(23) =821461a(24) =823274a(25) =825089a(26) =826906a(27) =832369a(28) =965053a(29) =1094957
External references
- oeis: A031660