75856

Appears in sequences

• Numbers that are the sum of 2 positive 5th powers.at n=42A003347
• Expansion of (1 - x)/(1 - 2*x - 2*x^2 + 2*x^3).at n=13A052528
• a(n) = 7^n + 9^n.at n=5A074623
• Numbers of form x^5 + y^5, x,y > 0 and x <> y.at n=34A088703
• The Wiener index of the tetrameric 1,3-adamantane TA(n) (see the Fath-Tabar et al. reference).at n=10A216106
• Numbers of the form 7^j + 9^k, for j and k >= 0.at n=35A226831
• Numbers that are sums of two coprime positive fifth powers.at n=26A228542
• The number of P-positions in the game of Nim with up to 5 piles, allowing for piles of zero, such that the number of objects in each pile does not exceed n.at n=17A241523
• a(n) = Sum_{m=0..n} Sum_{i=0..m} i*C(m-i,i)*C(m-i,n-m-i).at n=16A298371
• Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=6A316737
• Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=4A316739
• T(n,k) = Number of n X k 0..1 arrays with every element unequal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=59A316740
• Numbers k such that A370681(k) = A370681(k+1).at n=17A370682