263168

Appears in sequences

• Numbers that are the sum of 3 positive 9th powers.at n=12A003392
• Numbers that are the sum of at most 3 positive 9th powers.at n=25A004887
• Sums of 2 distinct powers of 4.at n=41A038470
• Values of n^2 - 1 resulting from A050795.at n=34A050799
• Lesser of two consecutive numbers each divisible by a sixth power.at n=12A068784
• Numbers k such that A007947(k) = A007947(m+1) and A007947(m) = A007947(k+1), where k > m.at n=10A088966
• a(n) = Sum_{d|n} phi(n/d)^2*2^(d+1).at n=17A161217
• a(n) = sinh(2*arcsinh(n))^2 = 4*n^2*(n^2 + 1).at n=16A173116
• Number of n-bead necklaces labeled with numbers -3..3 not allowing reversal, with sum zero and avoiding the pattern z z+1 z+2.at n=8A209068
• Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two or four distinct values for every i,j,k<=n.at n=16A211525
• a(2n) = 2a(n)+2^(2n), a(2n+1) = 2^(2n+1), a(0)=0.at n=18A227326
• Numbers of the form m = 2^i + 2^j, where i > j >= 0, such that m - 1 is prime.at n=49A239708
• a(n) = 4^n + 2^(n+1).at n=9A242985
• Numbers n such that n^2 XOR n^3 is a square, where XOR is the bitwise XOR operator.at n=29A261808
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 297", based on the 5-celled von Neumann neighborhood.at n=18A280615
• Number of monomials in c(n) where c(1) = x, c(2) = y, c(n+2) = c(n+1) + c(n)^2.at n=21A290075
• Number of length-n binary strings achieving the maximum possible subword complexity.at n=33A306688
• Consider coefficients U(m,L,k) defined by the identity Sum_{k=1..L} Sum_{j=0..m} A302971(m,j)/A304042(m,j) * k^j * (T-k)^j = Sum_{k=0..m} (-1)^(m-k) * U(m,L,k) * T^k that holds for all positive integers L,m,T. This sequence gives 3-column table read by rows, where the n-th row lists coefficients U(2,n,k) for k = 0, 1, 2; n >= 1.at n=21A316349
• Expansion of x*(31 + 326*x + 336*x^2 + 26*x^3 + x^4) / (1 - x)^6.at n=7A316457
• Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(4^(k-1)).at n=9A344248