493025

Appears in sequences

• Numbers that are the sum of 2 nonzero squares in 10 or more ways.at n=26A025301
• Numbers that are the sum of 2 distinct nonzero squares in 10 or more ways.at n=26A025320
• Concatenations of two squares in two ways.at n=28A038670
• a(n) = n^4/2 - n^3 + 3*n^2/2 - n + 1 = (n^2 + 1)*(n^2 - 2*n + 2)/2.at n=32A058919
• 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=15A097626
• RMS values of the Primitive RMS numbers: a(n) is the Root Mean Square of the divisors of A141813(n).at n=23A141814
• Numbers that are in more than one way the concatenation of the decimal representation of two nonzero squares.at n=28A192993
• a(n) is the smallest centered square number divisible by exactly n centered square numbers.at n=8A359232