90610

Appears in sequences

• a(n) = n*(n+5)*(n+6)*(n+7)/24.at n=34A005587
• Numbers that are the sum of 2 nonzero squares in exactly 8 ways.at n=19A025291
• Numbers that are the sum of 2 nonzero squares in 7 or more ways.at n=20A025298
• Numbers that are the sum of 2 nonzero squares in 8 or more ways.at n=20A025299
• Numbers that are the sum of 2 distinct nonzero squares in exactly 8 ways.at n=19A025309
• Numbers that are the sum of 2 distinct nonzero squares in 7 or more ways.at n=20A025317
• Numbers that are the sum of 2 distinct nonzero squares in 8 or more ways.at n=20A025318
• Number of series-reduced planted planar trees with n leaves of 2 colors where any 2 subtrees extending from the same node are different.at n=7A032030
• Numbers k that are the hypotenuse of exactly 40 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 40 ways.at n=10A097282
• Expansion of (1-4*x+7*x^2-5*x^3+4*x^4-6*x^5+21*x^6+18*x^7-5*x^8)/(1-x)^5.at n=20A212393