2537720636

Appears in sequences

• a(n) = 11*a(n-1) + a(n-2).at n=9A001946
• Bisection of Lucas sequence: a(n) = L(2*n+1).at n=22A002878
• Even Lucas numbers: a(n) = L(3*n).at n=15A014448
• Numerators of continued fraction convergents to sqrt(20).at n=14A041030
• Numerators of continued fraction convergents to sqrt(500).at n=20A041954
• a(n) = Lucas(4*n+1).at n=11A056914
• a(n) = Lucas(9*n).at n=5A087287
• a(1) = 1, a(2) = 2, a(n+1) = n*a(1) + (n-1)*a(2) + ... + (n-r)*a(r+1) + ... + a(n).at n=23A093960
• Lucas numbers for which the product of the digits is a Fibonacci number.at n=21A117769
• Lucas numbers for which the sum of the digits is a prime.at n=14A117790
• Numbers n such that the quintic polynomial x^5 - 10*n*x^2 - 24*n has Galois group A_5 over rationals.at n=21A135064
• Lucas numbers with an equal number of odd and even digits.at n=11A144833
• Continued cotangent recurrence a(n+1)=a(n)^3+3*a(n) and a(1)=11.at n=2A145185
• Nonprime Lucas numbers.at n=31A172159
• Integers n such that n^2 is the difference of two Lucas numbers (A000032).at n=29A221471
• The smallest Lucas number having exactly n distinct prime factors.at n=6A229490
• Numbers m such that m^2 - 1 is the product of three distinct Fibonacci numbers > 1.at n=29A242103
• Smallest Lucas number L(m) > L(n) that is divisible by the n-th Lucas number L(n) = A000204(n).at n=14A245580
• Numbers k such that k^2+2 is the product of a Fibonacci number and a Lucas number.at n=27A259561
• a(n) = n*(n^2 + 3)*(n^6 + 6*n^4 + 9*n^2 + 3).at n=11A261574