26947261171
domain: N
Appears in sequences
- a(0) = 1, a(1) = 5, a(n) = 4*a(n-1) - a(n-2).at n=18A001834
- Numerators of the rational convergents to sqrt(3) if both numerators and denominators are primes.at n=5A086386
- Prime numerators of the rational convergents to sqrt(3).at n=10A096146
- Number of Khalimsky-continuous functions with a three-point codomain.at n=35A131887
- Numerators of the lower principal convergents and the lower intermediate convergents to 3^(1/2).at n=36A143643
- Primes in A173299.at n=16A173929
- Probable primes in sequence {s_k(4)}, where s_k(4) = 4*s_{k-1}(4) - s_{k-2}(4), k >= 2, s_0(4) = 1, s_1(4) = 5.at n=6A299107
- a(n) = MPR2(n, 4), where MPR2(n, x) is the (monic) minimal polynomial of 2*cos(2*Pi/n) as defined in A232624.at n=36A309040