1806209

Properties

Appears in sequences

• Expansion of (1+x^2)/(1 - 2*x - 2*x^2 + x^3).at n=15A014742
• a(n) = Sum_{k=0..floor(n/2)} A026637(n-k, k).at n=30A026647
• Primes that can be expressed as the sum of a Fibonacci number and the square of a Fibonacci number.at n=35A178991
• Number of total dominating sets in the n-pan graph.at n=28A302506
• a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 2, a(2) = 5, a(3) = 7.at n=29A362388
• Prime numbersat n=135499