173225

Appears in sequences

• Numbers that are the sum of 2 nonzero squares in exactly 9 ways.at n=5A025292
• Numbers that are the sum of 2 nonzero squares in 9 or more ways.at n=7A025300
• Numbers that are the sum of 2 distinct nonzero squares in exactly 9 ways.at n=5A025310
• Numbers that are the sum of 2 distinct nonzero squares in 9 or more ways.at n=7A025319
• Numbers k that are the hypotenuse of exactly 37 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 37 ways.at n=5A097245
• a(n) + a(n+1) + a(n+2) = n^5, with a(1) = a(2) = 0.at n=14A152730
• Number of n X n symmetric (0,1)-matrices containing four ones.at n=25A185355
• Number of pairs of endofunctions f, g on [n] satisfying f(g^n(i)) = f(i) for all i in [n].at n=5A245911
• Number of pairs of endofunctions f, g on [n] satisfying f(g^5(i)) = f(i) for all i in [n].at n=5A245914
• Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.at n=20A298289