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 6.
A031419
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 6.
Terms
- a(0) =109a(1) =281a(2) =865a(3) =922a(4) =1277a(5) =1613a(6) =1769a(7) =1933a(8) =2161a(9) =2341a(10) =2789a(11) =3098a(12) =3653a(13) =3961a(14) =4285a(15) =4457a(16) =5065a(17) =5153a(18) =5713a(19) =5858a(20) =5954a(21) =6101a(22) =6458a(23) =6554a(24) =6709a(25) =7129a(26) =7349a(27) =7681a(28) =8237a(29) =8941
External references
- oeis: A031419