19828

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 80 ones.at n=16A031848
• Number of partitions of 2n free of multiples of 5. All odd parts occur with multiplicity 2 or 4. the even parts occur at most twice.at n=37A103257
• a(j) = maximum value of n for each distinct increasing value of (Sum of the quadratic non-residues of prime(n) - Sum of the quadratic residues of prime(n)) / prime(n) for each j.at n=17A166263
• Number of conjugacy classes of primitive elements in GF(5^n) which have trace 0.at n=8A192508
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 437", based on the 5-celled von Neumann neighborhood.at n=30A272155
• Numbers that are the sum of eight fourth powers in eight or more ways.at n=36A345583
• Numbers that are the sum of eight fourth powers in exactly eight ways.at n=21A345840