322102

Appears in sequences

• Numbers whose prime factors are 2 and 11.at n=36A033848
• Sum of two powers of 11.at n=20A073211
• a(n) is the derivative of n via transport of structure from polynomials. Completely multiplicative with a(2) = 1, a(prime(i+1)) = prime(i)^i for i > 0.at n=38A090884
• Primal codes of finite idempotent functions on positive integers.at n=14A109298
• Denominator of Euler(n, 1/11).at n=5A156293
• Numbers n such that the n-th cyclotomic polynomial has a root mod 11.at n=21A245480
• a(n) = Sum_{d|n} max(d, n/d)^5.at n=10A297844
• Period of the fraction 1/11^n for n >= 1.at n=5A334603
• Number of geometry-minimal periodic tilings of the Euclidean plane with Dress-complexity n.at n=22A335696
• a(n) = Sum_{k=0..floor(n/4)} (-1)^k * binomial(n+3,4*k+3) * Catalan(k).at n=18A360050