52855

Appears in sequences

• a(n) = (2*n - 7)*n^2.at n=31A015242
• Numbers k that divide 7^k + 3^k.at n=37A045586
• Numbers k such that core(k) = b(k,1)*b(k,0) where b(k,1) is the number of 1's in binary representation of k, b(k,0) the number of 0's and core(k) the squarefree part of k.at n=3A071639
• Numbers k such that k, k+1, k+2 and k+3 are products of 4 primes.at n=23A124728
• Number of all possible tetrahedra of any size and orientation, formed when intersecting the original regular tetrahedron by planes parallel to its sides and dividing its edges into n equal parts.at n=29A216173
• a(n) is the number in the first column of the Trithoff (tribonacci) array that starts off the row containing the tail of n times the tribonacci sequence.at n=30A351689