42410

Appears in sequences

• Numbers n such that n through n+6 are divisible by the same number of distinct primes.at n=22A045935
• Expansion of (1-x)/(1-x-2*x^3).at n=23A052537
• Number of partitions of 1 into fractions i/j with 1<=i<j<=n and i,j coprime.at n=19A115855
• Number of permutations of length n which avoid the patterns 312, 1324, 3421; or avoid the patterns 312, 1324, 2341, etc.at n=32A116722
• Coefficient of x in the reduction of the polynomial (x^2 + 2)^n by x^3 -> x^2 + 2.at n=8A192809
• Values of k such that F(k)*F(k+1)-1 is a prime, where F(k) is the k-th Fibonacci number (A000045).at n=17A271428
• a(n) begins the first run of at least n consecutive numbers with the same number of infinitary divisors.at n=8A318166
• Numbers k such that 303*2^k+1 is prime.at n=45A322916