143650

Appears in sequences

• Numbers that are the sum of 2 nonzero squares in exactly 9 ways.at n=3A025292
• Numbers that are the sum of 2 nonzero squares in 9 or more ways.at n=4A025300
• Numbers that are the sum of 2 distinct nonzero squares in exactly 9 ways.at n=3A025310
• Numbers that are the sum of 2 distinct nonzero squares in 9 or more ways.at n=4A025319
• 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=3A097245
• a(n) = 4*n^3 - 3*n + 1.at n=33A280089
• Primitive integers for the number of ways k to write as a sum of two squares.at n=40A336542
• Numbers that are the sum of six fourth powers in eight or more ways.at n=30A345565
• Numbers that are the sum of six fourth powers in exactly eight ways.at n=26A345820
• G.f. A(x,y) satisfies: x*y*A(x,y) = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x,y)^n, with coefficients T(n,k) of x^n*y^k in A(x,y) given as a triangle read by rows.at n=64A355360