55699

Appears in sequences

• a(n) = a(n-1)+a(m), where m=2n-2-2^(p+1) and 2^p<n-1<=2^(p+1), for n >= 4.at n=37A050071
• Numbers k such that phi(k) is a perfect sixth power.at n=33A078166
• Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.at n=22A255223
• Odd squarefree numbers n > 1 such that lambda(n)^2 = phi(n), where lambda is the Carmichael lambda function and phi is Euler's totient function.at n=34A276980
• Expansion of e.g.f. exp(x) / (1 + log(1 - 2*x)/2).at n=6A368449
• Values of terms in A380837 which are not in A379066.at n=22A380838