102416

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 40.at n=15A031718
• a(n) = 64*n^2 + 16.at n=39A157912
• a(n) = 256*n^2 + 16.at n=20A158574
• Number of n X 3 binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.at n=7A269006
• Numbers that are abundant (A005101) and have no Zumkeller divisors.at n=9A376879
• Symmetric difference of the primitive non-deficient numbers and the primitive Zumkeller numbers.at n=35A378538
• Numbers that are primitive non-deficient, but not primitive Zumkeller.at n=9A378656