36504

Appears in sequences

• Gaps of 2 in sequence A038593 (lower terms).at n=23A038643
• a(n) = n^2 * phi(n).at n=38A053191
• Difference between average of smallest prime greater than n^3 and largest prime less than (n+1)^3 and n-th pronic [=n(n+1)].at n=31A063036
• Numbers whose product of exponents is equal to the sum of prime factors.at n=32A071175
• Prime power perfect numbers: If n = Product p_i^r_i let PPsigma(n) = Product {Sum p_i^s_i, 2<=s_i<=r_i, s_i is prime}; sequence gives numbers k such that PPsigma(k) = 2*k.at n=4A096290
• a(n) = C(2n-1,n-1) mod n^3.at n=45A099907
• Numbers of the form (6^i)*(13^j), with i, j >= 0.at n=17A107710
• Molecular topological indices of the complete graph K_n.at n=26A181617
• Numbers with prime factorization p^2*q^3*r^3 where p, q, and r are distinct primes.at n=6A190106
• a(n) = 24*n^2.at n=39A195824
• Achilles number whose largest proper divisor is also an Achilles number.at n=22A203662
• Numbers n such that 7^n + 6 is prime.at n=13A217130
• a(n) = binomial(2*c-1, c-1) (mod c^3), where c is the n-th composite.at n=30A244214
• a(n) = [x^n] Product_{k>=1} 1/(1 + n*x^k)^k.at n=6A298988
• a(n) = (1/24)*n*((4*n + 3)*(2*n^2 + 1) - 3*(-1)^n).at n=18A325656
• Positions k where A348733(k) is not multiplicative.at n=40A348740
• Number of regions in a regular n-gon with all diagonals drawn whose edges all have a different number of facing edges.at n=49A350718
• Intersection of A375055 and A376936.at n=15A378769
• Numbers k for which sigma(k) >= 2*k and (sigma(k) - 2*k) AND k = k, where AND is bitwise-and, A004198.at n=29A388026
• Primitive terms in A389297: powerful numbers that are exponential deficient and having at least one exponential abundant divisor.at n=37A389298