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 49.

A031637

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 49.

Terms

    a(0) =15401a(1) =29633a(2) =48922a(3) =49810a(4) =135649a(5) =139354a(6) =175013a(7) =178373a(8) =217517a(9) =221261a(10) =225037a(11) =270841a(12) =325429a(13) =328858a(14) =376394a(15) =377621a(16) =382549a(17) =383786a(18) =386266a(19) =387509a(20) =390001a(21) =446953a(22) =449629a(23) =522125a(24) =525017a(25) =581605a(26) =583130a(27) =586186a(28) =589250a(29) =596945

External references