157441

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 31.at n=22A031619
• Number of sequences of n integers p(i) i=0..n-1 with 0<=p(i)<=2*i and -2<p(i)-p(i-1)<=2.at n=9A180907
• Numbers that are not the sum of 2 or fewer terms from A057890.at n=0A278862