35445

Appears in sequences

• Continued cotangent for tanh(1).at n=4A081793
• Odd n such that 2*phi(n) < n, but there does not exist an even k < n with phi(k) = phi(n).at n=7A118700
• Coefficient of x^2 in the reduction of the n-th Fibonacci polynomial by x^3->x^2+x+1. See Comments.at n=15A192651
• Numbers n such that phi(n) = phi(n+11), with Euler's totient function phi = A000010.at n=29A276504
• Numbers k such that {k + 2, k + 4} and {k^3 + 2, k^3 + 4} are twin prime pairs.at n=13A284058
• Number of regions among all distinct circles that can be constructed from a 2 X n square grid of points using only a compass.at n=9A359860
• Triangle read by rows: T(n,k) is the number of partitions of a 4-colored set of n objects into at most k parts with 0 <= k <= n.at n=42A382241