54000

Appears in sequences

• Denominators of poly-Bernoulli numbers B_n^(k) with k=3.at n=4A027646
• Numbers k that divide the (left) concatenation of all numbers <= k written in base 11 (most significant digit on left).at n=28A029480
• j-invariants for orders of class number 1.at n=5A032354
• Numbers whose set of base 15 digits is {0,1}.at n=24A033051
• a(n) = 2*n^3.at n=30A033431
• Numbers k with the property that k is a substring of its base-6 representation.at n=12A038106
• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*6^j.at n=18A038248
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*5^j.at n=17A038259
• Numbers k such that Sum_{j} p_j = Sum_{j} e_j where Product_{j} p_j^(e_j) is the prime factorization of k.at n=39A054411
• Numbers where k-th digit from right is either 0 or k.at n=24A063013
• Growth series for fundamental group of orientable closed surface of genus 4.at n=4A063814
• Permutation of A025487 (least prime signatures) which, when values are factored, exhibit self-similarity (cf. A008687).at n=44A086141
• Numbers n divisible by exactly three nontrivial permutations (rearrangements) of the digits of n.at n=7A090058
• Fourth column (m=3) of triangle A090447.at n=7A090448
• Numbers containing squares of Pythagorean triples in their divisor set.at n=14A096472
• Triangle read by rows: a(n,k) = number of paths of n upsteps U and n downsteps D that contain k UDUs.at n=48A097692
• a(n)=Product{k=0..n, 1+2^A101650(k)}/2.at n=10A101657
• Product of continued fraction terms of H(n) = Sum_{k=1..n} 1/k.at n=10A111047
• Powerful(1) numbers (A001694) whose digit reversal is a triangular number.at n=5A115691
• Values X satisfying the equation 7(X-Y)^4-8XY=0, where X>=Y.at n=2A123394