134217730
domain: N
Appears in sequences
- Number of conjugacy classes in Clifford group CL(n).at n=27A049332
- a(n) = 2^n + 2.at n=27A052548
- Number of elements in the continued fraction for Sum_{k=0..n} 1/2^2^k.at n=28A056469
- a(n) = (2^(n-1) + prime(n+1)-prime(n))/2.at n=28A085431
- a(n)=2a(n-1)+a(n-2)-2a(n-3).at n=26A087288
- a(n) = A089709(n+1)/A089709(n).at n=27A089985
- a(0) = 2, a(n) = 2^n + 2 for n>=1.at n=27A133140
- Binomial transform of [1, 5, -1, 5, -1, 5, ...]. Inverse binomial transform of A134350.at n=26A134351
- a(n) = a(n-1) + 2a(n-2).at n=27A135440
- a(n) = 3*a(n-1) - 3*a(n-2) + 2*a(n-3), with a(0) = a(1) = -1 and a(2) = 3.at n=27A135446
- Sequence defined by a(0)=a(1)=a(2)=1, a(3)=2, a(4)=6 and the formula a(n)=2^(n-2)+2 for n>=5.at n=29A174316
- Expansion of (1 + 2*x + 6*x^2)/(1 - x - x^2 - 2*x^3) in powers of x.at n=26A186575
- Sierpinski tetrahedron or tetrix numbers: a(n) = 2*4^n + 2.at n=13A283070
- a(n) is the next Ulam number (A002858) after 2^(n-1).at n=28A347212
- Least squarefree number >= 2^n.at n=27A372683