178707

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=23A001060
• a(n) = F(n+1) + L(n), where F(n) and L(n) are Fibonacci and Lucas numbers, respectively.at n=24A013655
• a(n) is the sum of all n-digit Fibonacci numbers.at n=4A128823
• 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=46A174562
• Values of x in the solutions to x^2 - 3xy + y^2 + 11 = 0, where 0 < x < y.at n=24A237132
• 2nd-largest term in n-th row of Stern's diatomic triangle A002487.at n=24A244472
• Numbers k(n) used for Markoff forms determining quadratic irrationals with purely periodic continued fractions.at n=29A305311
• a(0) = 1; a(n) = 3 * Sum_{k=1..n} binomial(n,k) * a(k-1).at n=7A343975