278528

Appears in sequences

• a(n) = (n+2)*2^(n-1).at n=15A001792
• a(n) = Sum_{k=0..floor(n/2)} k*binomial(n,2*k) = floor(n*2^(n-3)).at n=17A049610
• a(n) = A055993(n) - A034444(A056627(n)).at n=45A056630
• a(n) = A055993(n) - A034444(A056627(n)).at n=46A056630
• 15-almost primes (generalization of semiprimes).at n=17A069276
• a(n) = 17*2^n.at n=14A110287
• (n^3+n)*8^n.at n=3A128048
• Denominators of coefficient of x^(n+1/2) in the series expansion of the haversine.at n=8A143582
• a(n) is the smallest positive integer m with exactly n zeros in its binary representation and with n represented in binary as a substring of the binary representation of m.at n=16A147761
• Numbers k such that phi(k) = number of perfect partitions of (k-1).at n=23A166156
• Inverse binomial transform of A026741.at n=17A168150
• Number of surreal number forms produced by the n-th iteration of the induction rule.at n=4A174972
• Number of compositions of n with at most one odd part.at n=31A211164
• Row sums of A211226.at n=30A211227
• Denominator of Bernoulli(2*n,1/2) / Period of length 2: repeat 12, 60.at n=7A212655
• 3X3 square grid graph coloring a rectangular array: number of nX1 0..8 arrays where 0..8 label nodes of the square grid graph and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.at n=10A223372
• Number of solutions to Sum_{i=1..n} x_i^2 == 1 (mod 4) with x_i in 0..3.at n=9A229136
• Numbers m such that, in the prime factorization of m, the product of the prime factors equals the sum of prime factors and exponents.at n=17A231293
• Number of n X 3 0..7 arrays with no element x(i,j) adjacent to itself or value 7-x(i,j) horizontally, diagonally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 4 5 and 6, 2 appearing before 3 4 and 5, and 3 appearing before 4 in row major order (unlabelled 8-colorings with no clashing color pairs).at n=5A233163
• Number of n X 6 0..7 arrays with no element x(i,j) adjacent to itself or value 7-x(i,j) horizontally, diagonally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 4 5 and 6, 2 appearing before 3 4 and 5, and 3 appearing before 4 in row major order (unlabelled 8-colorings with no clashing color pairs).at n=2A233166