186732

Appears in sequences

• Expansion of 1/((1-x)^4*(1-x^2)^2).at n=35A028346
• Numbers k such that sigma(k) - usigma(k) is a square and sets a new record for such squares.at n=34A063840
• Numbers whose sum of nonunitary divisors and sum of unitary divisors are both positive squares.at n=4A064730
• A triangle related to the a(n) formulas for the rows of the ED2 array A167560.at n=42A167565
• Number of nX4 binary matrices with no initial bit string in any row or column divisible by 6.at n=8A181038
• 6*s*t*(4*s^4 + 3*t^4), where s > 0, t = 1..s.at n=15A241923
• Number of nX6 binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.at n=3A268884
• T(n,k)=Number of nXk binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.at n=39A268886
• Number of 4Xn binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.at n=5A268889
• a(n) = 972*n^2 - 270*n (n>=1).at n=13A305071
• Numbers that can be written as the average of two positive cubes in more than one way.at n=13A322102
• Positive integers that have a record number of divisors in Eisenstein integers.at n=37A323392
• Number x such that sigma(x) = Sum_{i=1..k} {sigma(x/p_i)}, where p_i are the k prime factors of x.at n=7A324711
• Indices k at which record low values of the ratio A046530(k)/k occur.at n=41A330695