39850

Appears in sequences

• Numbers k such that abs(prime(k)-k*tau(k)) < sqrt(k).at n=28A068543
• Expansion of g.f. x*(1-x+x^5+x^6-x^7+x^9)/(1-2*x+x^4+x^6-2*x^7+x^10).at n=18A097596
• Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,1,1,0 for x=0,1,2,3,4.at n=8A197345
• T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,3,1,1,0 for x=0,1,2,3,4.at n=57A197350
• Expansion of x^2*(1-x^2)*(1-3*x^2)/(1-x-5*x^2+4*x^3+5*x^4-3*x^5).at n=18A203837
• Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=10A302518
• Number of ways to choose a multiset of values whose sum is n from the first floor(1+log_2(n)) rows of Pascal's triangle.at n=43A366120
• Consecutive states of the linear congruential pseudo-random number generator for the Texas Instruments TI99 when started at 1.at n=21A384221