802816

Appears in sequences

• Squares with initial digit '8'.at n=25A045792
• Greatest common divisor of (n+2)! and n^n.at n=13A062776
• a(n) = (3*n-2)*2^(n-3).at n=15A066373
• 16-almost primes (generalization of semiprimes).at n=25A069277
• Smallest number beginning with 8 and having exactly n prime divisors counted with multiplicity.at n=15A106428
• Smallest number ending with the digits of n that has exactly n prime factors (counted with multiplicity).at n=15A109687
• a(n) = n^2*4^n.at n=7A128782
• a(n) = n^2 if n is odd, n^2*2^(n-2) if n is even.at n=14A168251
• Triangle read by rows, T(n, k) = 4^n*[x^k]hypergeometric([3/2, -n], [3], -x), n>=0, 0<=k<=n.at n=39A254632
• Squares not divisible by 10 with digits d_1, d_2, ... d_k such that d_1^2 + ... + d_k^2 is a square.at n=29A254959
• Expansion of Product_{k>=1} (1 + x^prime(k))^prime(k).at n=46A291647
• Heinz numbers of integer partitions whose product equals their length.at n=28A353699
• Numbers k such that, in the prime factorization of k, the least common multiple of the exponents equals the least common multiple of the prime factors.at n=40A356433
• Perfect powers k such that A052409(k) is equal to A052409(A366275(k)).at n=34A366278
• Numbers k = p1^e1*p2^e2, with e1 != e2, such that the Euclidean distance between points (p1, e1) and (p2, e2) is an integer.at n=23A387172