42465

Appears in sequences

• Numbers n such that sigma(n+1)-sigma(n) = -sigma(n)/d(n), where d(n) denotes the number of divisors of n.at n=10A066177
• Composite squarefree numbers n such that p(i)-6 divides n+6, where p(i) are the prime factors of n.at n=18A225706
• Expansion of (-3/2+(x^3+3*x)/(sqrt(x^4-4*x^3-2*x^2+1)*2*x)).at n=18A247170
• Numbers k such that A109812(k) AND A109812(k+2) = 0 (where AND denotes the bitwise AND operator).at n=36A352773