110447

Appears in sequences

• a(n) = a(n-1) + a(n-2) with a(0)=2, a(1)=5. Sometimes called the Evangelist Sequence.at n=22A001060
• a(n) = F(n+1) + L(n), where F(n) and L(n) are Fibonacci and Lucas numbers, respectively.at n=23A013655
• a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = n - 1 - 2^p and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 3, and a(3) = 1.at n=17A049966
• Expansion of (7-2*x) / (1-3*x+x^2).at n=10A100545
• a(n) = n*(4*n^2 + n - 1)/2.at n=37A125200
• a(1)=2, a(2)=3, then a(n)=a(n-1)+a(n-2) if n odd, a(n)=a(n-1)-a(n-2) if n even.at n=44A174562
• a(1)=2, a(2)=3, then a(n)=a(n-1)+a(n-2) if n odd, a(n)=a(n-1)-a(n-2) if n even.at n=47A174562
• y-values in the solution to x^2 - 20*y^2 = 176.at n=23A228208
• 2nd-largest term in n-th row of Stern's diatomic triangle A002487.at n=23A244472
• a(n) = 8*n^3 - 6*n - 1.at n=24A369922