35125

Appears in sequences

• Number of ordered factorizations with 3 levels of parentheses indexed by prime signatures: A050358(A025487(n)).at n=18A050359
• Scaled Chebyshev U-polynomials evaluated at i*sqrt(5)/2. Generalized Fibonacci sequence.at n=6A057088
• Primitive sliding numbers (excludes multiples of 10): totals, including repetitions, of sums r + s, r >= s, such that 1/r + 1/s = (r + s)/10^k for some k >= 0.at n=38A103184
• Numbers k such that k, k+1, k+2 and k+3 are products of 4 primes.at n=13A124728
• a(n) = 36*n^2 - 55*n + 21.at n=31A157262
• Numerator of H(n+4) - H(n), where H(n) = Sum_{k=1..n} 1/k.at n=35A189642
• Numbers n such that sum of cubes of digits of n equals the sum of prime divisors of n.at n=17A217531
• Sum of the areas of all r X s rectangles such that r + s = 2n, with r, s composite.at n=41A334229
• Expansion of e.g.f. exp(-x * (1 - x)) / (1 - x)^2.at n=7A375424