38642

Appears in sequences

• Numbers that are not squarefree and whose Euler totient function is squarefree.at n=35A049198
• McKay-Thompson series of class 21C for the Monster group.at n=27A058565
• a(n) = 2*prime(n)^2.at n=33A079704
• 2*p^2, for p an odd prime.at n=32A143928
• Half the number of nX4 binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors.at n=6A183400
• T(n,k)=Half the number of nXk binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors.at n=48A183402
• T(n,k)=Half the number of nXk binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors.at n=51A183402
• 1/12 the number of (n+2)X(n+2) 0..2 arrays with each 3X3 subblock containing three of each value.at n=3A184377
• 1/12 the number of (n+2)X6 0..2 arrays with each 3X3 subblock containing three of each value.at n=3A184381
• T(n,k)=1/12 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing three of each value.at n=24A184386
• Numbers of spanning trees of the Mycielski graphs.at n=3A193148
• Triangle enumerating certain two-line arrays of positive integers.at n=41A211788
• Number of nondecreasing -n..n vectors of length 3 whose dot product with some lexicographically greater than or equal to nondecreasing -n..n vector equals 3.at n=33A226424
• Where records occur in A070138.at n=34A298942
• Numbers k such that A206369(k) is prime.at n=30A383649