524289
domain: N
Appears in sequences
- a(n) = 2^n + 1.at n=19A000051
- First occurrence of n consecutive numbers that take same number of steps to reach 1 in 3x+1 problem.at n=29A000546
- Numbers that are the sum of 3 positive 9th powers.at n=16A003392
- Divisors of 2^38 - 1.at n=4A003544
- Numbers that are the sum of at most 3 positive 9th powers.at n=31A004887
- a(n) = n*2^(n-1) + 1.at n=16A005183
- If n mod 4 = 0 then 2^(n-1)+1 elif n mod 4 = 2 then 2^(n-1)-1 else 2^(n-1).at n=19A007679
- a(n) = sigma_19(n), the sum of the 19th powers of the divisors of n.at n=1A013967
- Numerator of sum of -19th powers of divisors of n.at n=1A017701
- Pisot sequence L(5,9).at n=17A020737
- Centered cube numbers: (n+1)^19+n^19.at n=1A036097
- Pisot sequence L(3,5).at n=18A048578
- Binary encoding of semiprimes (A001358).at n=46A048623
- Binary encoding of A006881, numbers with two distinct prime divisors.at n=41A048639
- a(n) = n*4^n + 1.at n=8A050915
- Summatory Rudin-Shapiro sequence for 2^(n-1).at n=38A051032
- Summatory Rudin-Shapiro sequence for 2^(n-1).at n=37A051032
- a(2*n+1) = 1, a(2*n) = 2*a(2*n-2) - 1.at n=38A052552
- Expansion of (2-3*x-x^2+x^3)/((1-x)*(1+x)*(1-2*x)).at n=20A052950
- Difference between (smallest square strictly greater than 2^n) and 2^n.at n=36A056008