134136

Appears in sequences

• a(n) = 9*(n-2)*(5*n-13)*(5*n^2 - 19*n + 16)/2.at n=6A060786
• Triangle with n >= k >= 0 where a(n,k) = 2^k*3^(n-k)*(C(n+1,0)+C(n+1,1)+...C(n+1,k)).at n=38A061929
• Duplicate of A060786.at n=6A064196
• Numbers with prime factorization pq^3r^6.at n=31A190467
• Numbers divisible by both the sum of the squares of their digits and the product of their digits.at n=13A244857
• Triangle read by rows: T(n,k) is the number of lone-child-avoiding rooted trees with n leaves of exactly k colors.at n=26A319376
• a(n) = n! * Sum_{k=0..floor(n/3)} (n - 3*k)^n/(n - 3*k)!.at n=6A357174