21979508
domain: N
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=33A001060
- a(n) = F(n+1) + L(n), where F(n) and L(n) are Fibonacci and Lucas numbers, respectively.at n=34A013655
- a(n) is the sum of all n-digit Fibonacci numbers.at n=6A128823
- Values of x in the solutions to x^2 - 3xy + y^2 + 11 = 0, where 0 < x < y.at n=34A237132
- 2nd-largest term in n-th row of Stern's diatomic triangle A002487.at n=34A244472