192900153618
domain: N
Appears in sequences
- a(n) = a(n-1)*(a(n-1)^2 - 3).at n=3A001999
- Bisection of Lucas numbers: a(n) = L(2*n) = A000032(2*n).at n=27A005248
- Even Lucas numbers: a(n) = L(3*n).at n=18A014448
- Numerators of continued fraction convergents to sqrt(320).at n=17A041604
- Lucas(6*n): a(n) = 18*a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 18.at n=9A087215
- a(n) = Lucas(9*n).at n=6A087287
- a(0) = 2, a(n) = Lucas(phi(n^2)) for n > 0.at n=9A197190
- Number of ways to place k non-attacking knights on a 2 X n horizontal cylinder, summed over all k>=0.at n=26A201222
- Smallest Lucas number L(m) > L(n) that is divisible by the n-th Lucas number L(n) = A000204(n).at n=17A245580
- Numbers n such that n^2 + 1 is the product of three distinct Fibonacci numbers > 1.at n=25A245688
- Lucas numbers (A000204) of the form n^2 + 2.at n=14A246453
- Solutions x to the Pell-Fermat equation x^2 - 5*y^2 = 4.at n=13A342710