56669

Appears in sequences

• 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 95.at n=0A031683
• Square roots of squares in A068177.at n=5A091876
• Numbers k such that 210*k+{11, 13, 17, 19, 23, 29} are 6 consecutive primes.at n=17A182282
• Numbers k such that 210*k+{11,13,17,19,23,29,31} are 7 consecutive primes.at n=3A182387
• Numerator of H(n+4) - H(n), where H(n) = Sum_{k=1..n} 1/k.at n=28A189642
• Positive integers with binary expansion (b(1), ..., b(m)) such that Sum_{i = 1..m-k} b(i)*b(i+k) is odd for all k = 0..m-1.at n=10A360388