204425

Appears in sequences

• Expansion of e.g.f. exp(arcsin(x)).at n=10A006228
• Numbers that are the sum of 2 nonzero squares in 9 or more ways.at n=9A025300
• Numbers that are the sum of 2 nonzero squares in 10 or more ways.at n=2A025301
• Numbers that are the sum of 2 distinct nonzero squares in 9 or more ways.at n=9A025319
• Numbers that are the sum of 2 distinct nonzero squares in 10 or more ways.at n=2A025320
• Partial sums of sequence {1/(i^2+1): i=0..n} (denominators).at n=7A033468
• Partial sums of sequence {1/(i^2+1): i=0..n} (denominators).at n=8A033468
• Numbers k that are the hypotenuse of exactly 67 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 67 ways.at n=1A097626
• RMS values of the RMS numbers: a(n) is the root mean square of the divisors of A140480(n).at n=29A141812
• RMS values of the Primitive RMS numbers: a(n) is the Root Mean Square of the divisors of A141813(n).at n=14A141814
• Denominators corresponding to A190948.at n=7A190950
• Denominators corresponding to A190948.at n=8A190950
• Numbers k such that distances from k to three nearest squares are three perfect squares.at n=24A234335
• a(n) = Product_{k=1..n} (4*k^2+1).at n=4A277354
• Numbers that set a record for occurrences as longest side of a primitive Heronian triangle.at n=38A306626
• a(n) is the least positive integer that can be expressed as the sum of two distinct perfect powers (A001597) in exactly n ways.at n=12A365295
• a(n) is the numerator of f(n)*conj(f(n)), where f(n) = Product_{k=1..n} (1/k + i), i is the imaginary unit, and conj(z) is the complex conjugate of z.at n=6A370555
• Smallest number which can be represented as a sum of two distinct nontrivial powers in exactly n ways.at n=11A390008