87403803

Appears in sequences

• Lucas numbers (beginning with 1): L(n) = L(n-1) + L(n-2) with L(1) = 1, L(2) = 3.at n=37A000204
• Bisection of Lucas numbers: a(n) = L(2*n) = A000032(2*n).at n=19A005248
• Odd Lucas numbers.at n=25A014447
• Number of maximum matchings in the n-Moebius ladder M_n.at n=38A020878
• a(n) = floor(tau^n) + 1, where tau = (1 + sqrt(5))/2.at n=38A062724
• Squarefree Lucas numbers.at n=28A063509
• Sum of Lucas numbers and inverted Lucas numbers: a(n) = A000032(n)*A075193(n).at n=36A075270
• Lucas numbers for which the product of the digits is a Fibonacci number.at n=16A117769
• a(n) = (F(2*n-1) + F(2*n+1))*(5/6 - cos(2*Pi*n/3)/3), where F(n) = Fibonacci(n).at n=19A128052
• Odd numbers in A138123.at n=36A142248
• Lucas(3n+2) = Fibonacci(3n+1) + Fibonacci(3n+3).at n=12A163063
• Number of n X 2 binary arrays with all 1s connected, a path of 1s from top row to lower right corner, and no 1 having more than two 1s adjacent.at n=36A163695
• Round phi^n to the nearest integer.at n=38A169985
• Nonprime Lucas numbers.at n=25A172159
• Values of gcd(Fibonacci(n), Fibonacci(n+1)+1) sorted with no repeats.at n=38A178766
• Values of gcd(Fibonacci(n), Fibonacci(n+3)+2) sorted with no repeats.at n=38A178767
• Denominators of A178381(4*n+1)/A178381(4*n).at n=19A179132
• Subsequence of A014217 (n=2,3,5,6,8,9,11,12,...).at n=24A182642
• Number of ways to place k non-attacking knights on a 2 X n horizontal cylinder, summed over all k>=0.at n=18A201222
• Rounded area of distinct right triangles appearing in the unit golden spiral.at n=37A221212