56623104

Appears in sequences

• Denominators of coefficients of 1/2^(2n+1) in Newton's series for Pi.at n=13A054388
• a(n) = n*2^(n-6).at n=21A078836
• a(1)=1, then a(n)=3*a(n-1) if n is already in the sequence, a(n)=2*a(n-1) otherwise.at n=24A079352
• a(n) is the number of occurrences of 11s in the palindromic compositions of m=2*n-1 = the number of occurrences of 12s in the palindromic compositions of m=2*n.at n=20A079863
• Number of divisors of n-th cyclic number.at n=20A087024
• a(1) = 1; a(n+1) = a(n) * k(n), where k(n) is the number of elements of {a(j)}, 1<=j<=n, which are <= n.at n=15A094590
• Smallest number beginning with 5 and having exactly n prime divisors counted with multiplicity.at n=23A106425
• a(n) = n^3*8^n.at n=6A128794
• Second differences of A129952.at n=23A129954
• Row sums of triangle A133935.at n=23A131352
• a(n) is the number of shapes of balanced trees with constant branching factor 4 and n nodes. The node is balanced if the size, measured in nodes, of each pair of its children differ by at most one node.at n=28A131890
• a(n) = Product_{k=1..n-1} (ceiling(n/k) - ceiling(n/k) mod 2).at n=17A145119
• a(n) = 27*2^n.at n=21A175806
• Denominator of series coefficients for Archimedes' spiral which transforms into Galileo's spiral.at n=6A202408
• Number of n X 2 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).at n=12A208428
• Least number of the form 11*m-1 with exactly n prime factors, counted with multiplicity.at n=23A225210
• a(n) = 27*8^n.at n=7A272342
• Cubes whose largest digit is 6.at n=27A295021
• Expansion of 1/Sum_{k>=0} A000326(k+1)*x^k.at n=24A296775
• Terms of A025487 from which the distance to the next larger prime is a composite number.at n=19A329894