321510

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 54.at n=20A031732
• Location of record values in A080577; also partial sums of A006128 plus 1.at n=31A124920
• a(n) = 441*n^2 + 21.at n=27A158603
• Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 1,3,4,6,0,2,6 for x=0,1,2,3,4,5,6.at n=7A197650