36450

Appears in sequences

• Theta series of 13-dimensional lattice Kappa_13 with minimal norm 4.at n=4A029897
• Decimal part of n^(1/11) starts with a 'nine digits' anagram.at n=13A034286
• Numbers k such that phi(2*sigma(k)) = 2*sigma(phi(k)).at n=18A067709
• Numbers k such that sigma(phi(k)) divides phi(sigma(k)).at n=26A073858
• Table T(n,k) by antidiagonals: T(n,k) = number of partitions of n balls of k colors.at n=62A075196
• a(n) = (n-1)^3*((n-2)^2 - 2*(n-3)).at n=9A079503
• Numbers n such that sopfr(n)/spf(n) is a semiprime and sopfr(n)/lpf(n) is a semiprime, where sopfr(n) = A001414(n) is sum of primes dividing n (with repetition), spf(n) and lpf(n) are smallest and largest primes dividing n, respectively. Also, spf(n)!=lpf(n).at n=35A085718
• Sum of all matrix elements of n X n matrix M(i,j) = i^3+j^3, (i,j = 1..n). a(n) = n^3*(n+1)^2/2.at n=8A099903
• a(n) = (n^3 + n^2)*3^n.at n=4A129003
• Eigentriangle generated from A109128, row sums = expansion of {2(exp(x)-1)}.at n=43A144061
• Non-deficient numbers with odd sigma such that the sum of the even divisors is twice the sum of the odd divisors.at n=25A171642
• Numbers with 42 divisors.at n=32A175750
• Numbers of the form p^6*q^2*r where p, q, and r are distinct primes.at n=30A179703
• a(n) = floor(1/{(10+n^4)^(1/4)}), where {}=fractional part.at n=44A184634
• Number of bases to which terms of A141768 are strong pseudoprimes.at n=20A195328
• Fixed points of A225546.at n=31A225547
• Numbers k such that phi(sigma(k))/sigma(phi(k)) = 2.at n=11A229238
• G.f.: Product_{j>=1} 1/(1-x^j)^binomial(j+3,3).at n=8A255050
• LB numbers: positive integers of the form m = a*10^k+b (with a > 0 and b < 10^k) satisfying two properties: 1) the set of prime factors of m is the union of the sets of prime factors of a and b; and 2) A001222(m) = A001222(a) + A001222(b).at n=13A267856
• Primordial LB numbers: LB numbers (A267856) that are not of the form 10*n where n is also an LB number.at n=7A268269