36519

Appears in sequences

• Numbers n such that sum of distinct primes dividing n is divisible by the largest prime dividing n. Also n is neither a prime, nor a true power of prime and n is squarefree. Squarefree solutions of A071140.at n=31A071141
• Numbers n such that (i) the sum of the distinct primes dividing n is divisible by the largest prime dividing n and (ii) n has exactly 4 distinct prime factors and (iii) n is squarefree.at n=13A071143
• Squarefree numbers k such that the largest prime factor of k is equal to the sum of the other prime factors of k.at n=30A071312
• a(1)=0, and a(n+1) is the position of first occurrence of a(n) in the decimal expansion of 1/Pi.at n=36A098319
• The Wiener index of a chain of n triangles (i.e., joined like VVV..VV; here V is a triangle!).at n=36A143941
• a(n) = 38*n^2 + 1.at n=31A158593
• Coefficient of x^n in the expansion of ( (1-x) / (1-x-x^3) )^n.at n=14A370625
• Numbers k such that omega(k) = 4 and the largest prime factor of k equals the sum of its remaining distinct prime factors, where omega(k) = A001221(k).at n=20A383728