69985

Appears in sequences

• Expansion of 1/(1-x^3-x^4-x^5-x^6).at n=39A017819
• Rounded difference between 10^n/(log(10^n) - A) and pi(10^n), where A is Legendre's constant and pi is the prime counting function.at n=9A058290
• Pierpont semiprimes: semiprimes of the form (2^K)*(3^L)+1.at n=40A113432
• a(n) = 54*n^2 + 1.at n=36A158646
• a(n) = 9*6^n+1.at n=5A199413
• Denominators of the continued fraction convergents of log_10((1+sqrt(5))/2).at n=12A217686
• Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00010001 00010101 or 01010101.at n=15A261106
• Numbers z such that x^2 + y^7 = z^2 (with positive integers x and y) and gcd(x, y, z) = 1.at n=7A293693