21914

Appears in sequences

• Coordination sequence for MgZn2, Position Zn2.at n=37A009938
• Numbers k such that the continued fraction for sqrt(k) has period 83.at n=18A020422
• a(1)=1, a(n) is the smallest integer > a(n-1) such that the largest element in the simple continued fraction for S(n)=1/a(1)+1/a(2)+...+1/a(n) equals prime(n).at n=27A070901
• The first 10 digits of the fifth root of n contain the digits 0-9.at n=11A119520
• Number of length n+5 0..1 arrays with at most two downsteps in every n consecutive neighbor pairs.at n=12A256820