138040

Appears in sequences

• Number of possible queen moves on an n X n chessboard.at n=34A035005
• Positive integers n such that n^2 = (x^4 - y^4)*(z^4 - t^4) where x>y and z>t are distinct pairs of integers with gcd(x,y)=gcd(z,t)=1.at n=16A147856
• Number of s in {1,...,n}^n having shortest run with the same value of length 9.at n=20A228635
• a(n) = n*(n+1)*(7*n-6)/2.at n=34A256718
• a(n) = n*(n+1)*(n+2)*(n+3)*(2*n+1)/12.at n=14A356251