443556

Appears in sequences

• Sum of first n cubes; or n-th triangular number squared.at n=36A000537
• Squares of even triangular numbers.at n=17A014738
• a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^3.at n=36A053819
• A Pellian-related recursive sequence.at n=8A054493
• Squares of A002280 or numbers (666...6)^2.at n=3A075415
• Squares arising as a concatenation of k and 9's complement of k.at n=6A084006
• Duplicate of A075415.at n=2A102794
• a(n) = floor( {n concatenated with n n times }^(1/2) * 10 )^2.at n=3A114777
• Squares such that square-+5 are primes.at n=15A154711
• Numbers which can be expressed as the product of numbers made of only sixs.at n=29A161144
• a(n) = tau_{n}(n) = number of ordered n-factorizations of n.at n=35A163767
• Number of 3 X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.at n=13A207694
• Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 1 vertically.at n=9A209227
• Perfect powers equal to the sum of 6 factorial numbers.at n=41A227647
• Squares representable as b! + triangular(c).at n=40A230365
• If x is in the sequence then so are x^2 and x(x+1)/2.at n=38A241241
• Number of (1+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=33A250813
• T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change +-(.,.) 0,0 0,2 or 1,2.at n=29A264131
• Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 0,2 or 1,2.at n=6A264133
• Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having index change +-(.,.) 0,0 1,0 or 1,2.at n=2A264269