39629

Appears in sequences

• a(n) = L(n+1) + c(n) where L(k) = k-th Lucas number and c(n) is n-th number that is 1 or not a Lucas number.at n=20A022802
• Sum of n-th Lucas number greater than 3 and n-th number that is 1 or is not a Fibonacci number.at n=19A023489
• a(n) = b(n) + d(n), where b(n) = (n-th Lucas number > 3) and d(n) = (n-th non-Lucas number).at n=19A023495
• Numbers k such that 5*10^k + 9 is prime.at n=14A103004
• Least number k having n representations as the sum of the minimal number of biquadrates A002377(k).at n=21A185673
• a(n) = (a(n-1) * a(n-5) + a(n-2) * a(n-3) * a(n-4)) / a(n-6), with a(0) = a(1) = a(2) = a(3) = a(4) = a(5) = 1.at n=13A276531