32104

Appears in sequences

• Numbers n with the property that n is an anagram of the digits of the distinct prime factors of n.at n=6A096595
• Expansion of (1-4*x)/(1-x*(1-x)^3).at n=19A119306
• Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) + m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 1, read by rows.at n=38A157147
• Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) + m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 1, read by rows.at n=42A157147
• a(n) = 4^n*(n/4 + binomial(n-1/2, -1/2)).at n=7A241478
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7.at n=10A252298
• White to move: King and Queen vs. King: Number of positions with mate in n.at n=6A274684
• Number of nX3 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1s.at n=8A296969
• T(n,k)=Number of nXk 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1s.at n=57A296974
• Solution (a(n)) of the complementary equation a(n) = 2*a(n-1) - a(n-2) + b(n-1) + b(n); see Comments.at n=42A305330
• Composite numbers that are anagrams of the concatenation of their prime factors.at n=13A306474
• a(1) = 1; a(n+1) = -Sum_{d|n} a(n/d) * a(d).at n=16A325303