242785

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 1, with a(0) = a(1) = 1.at n=25A001595
• a(n) = 2*Fibonacci(n+2) + ((-1)^n - 3)/2.at n=24A066629
• A Chebyshev transform of (1+3x)/(1-3x).at n=12A099858
• Numbers that are the sum of exactly two sets of Fibonacci numbers.at n=45A122194
• Row sums of triangle A131779.at n=24A131780
• Diagonal sums of number triangle A132046.at n=25A154327
• a(0)=1, a(1)=-2; a(n+2) = a(n+1) + a(n) + (period 3: repeat 3, 1, -1).at n=27A226328
• a(n) = a(n-1) + a(n-2) + (1 - (-1)^(a(n-1) + a(n-2))) with a(0) = 0, a(1) = 1.at n=25A253197
• a(n) = a(n-1) + a(n-2) + (1 + (-1)^(a(n-1) + a(n-2))) with a(0)=0, a(1)=1.at n=26A255978
• a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 2, a(1) = 1, a(2) = 2, a(3) = 1.at n=27A295686