43692
domain: N
Appears in sequences
- Number of distinct quadratic residues mod 2^n.at n=18A023105
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 38.at n=10A031716
- Number of distinct quadratic residues mod 4^n.at n=9A039301
- Number of distinct quadratic residues mod 8^n.at n=6A039305
- Expansion of 2*(1-x-x^2)/((1-x)*(1+x)*(1-2*x)).at n=16A052953
- Sequence A075166 interpreted as binary numbers and converted to decimal.at n=33A075165
- a(n) = -a(n-1) + 2*a(n-2), a(0)=1, a(1)=2.at n=17A084247
- Binomial transform of (-1)^mod(n,3) (A257075).at n=17A086953
- Expansion of (1-x+2*x^2)/((1+x)*(1-2*x)).at n=16A097073
- Numbers n such that A003313(3n) < A003313(n).at n=10A104699
- Numbers k such that A003313(k) = A003313(6*k).at n=10A116461
- Jacobsthal numbers(A001045) + 1.at n=17A128209
- Binomial transform of A101000.at n=15A130624
- a(n) = 3a(n-1) - 3a(n-2) + 2a(n-3), a(0) = 3, a(1) = 2, a(2) = 0.at n=17A131370
- Row sums of triangle A135230.at n=16A135231
- Second differences of Jacobsthal sequence A001045, pairs with even and odd indices swapped.at n=16A140505
- First differences of A133730.at n=34A141416
- Jacobsthal numbers A001045, every second term incremented by 1.at n=17A155944
- a(n) = 121*n^2 + 11.at n=19A158536
- a(n) = 2*a(n-1) - a(n-3) + 2*a(n-4) for n>3, a(0)=a(1)=1, a(2)=0, a(3)=2.at n=17A166249