98432

Appears in sequences

• arctanh(arctan(x)+tan(x))=2*x+16/3!*x^3+808/5!*x^5+98432/7!*x^7...at n=3A013005
• Expansion of (theta_3(z)*theta_3(7z) + theta_2(z)*theta_2(7z))^4.at n=27A028596
• Arrange digits of cubes in descending order.at n=29A032554
• a(n) is the sum of all integers from 2^(n-2)+1 to 2^(n-1).at n=8A049775
• Number of periodic palindromic structures of length n using a maximum of two different symbols.at n=33A056503
• a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) for n > 4, with first terms 1, 2, 4, 7.at n=17A135360
• Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 4 X 4 X 4 subtriangle summing to 5.at n=5A154049
• a(n) = ((2^n)*((2^n)+1) - (2^(n-1))*((2^(n-1))+1))/2, a(1)=3.at n=8A158561
• Number of (7+2) X (n+2) 0..3 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=32A252726
• Numbers n such that phi(n) = 2*phi(n-2).at n=31A258454
• Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(k^8).at n=3A343288
• a(n) = (1/4) * Sum_{k=0..n} (k+2) * 2^k * binomial(2*k+2,2*n-2*k+1).at n=7A391832