Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 1.
A031414
Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 1.
Terms
- a(0) =13a(1) =29a(2) =53a(3) =58a(4) =74a(5) =85a(6) =97a(7) =106a(8) =125a(9) =137a(10) =157a(11) =173a(12) =185a(13) =229a(14) =233a(15) =241a(16) =293a(17) =298a(18) =314a(19) =338a(20) =346a(21) =353a(22) =365a(23) =389a(24) =397a(25) =425a(26) =433a(27) =445a(28) =457a(29) =461
External references
- oeis: A031414