57313
domain: N
Appears in sequences
- a(n) = a(n-1) + a(n-2) + 1, with a(0) = a(1) = 1.at n=22A001595
- Strong pseudoprimes to base 88.at n=21A020314
- Sum of n plus its prime factors associated with A020700.at n=41A020905
- a(n) = 2*Fibonacci(n) - (1 - (-1)^n)/2.at n=23A062114
- a(n+2) = a(n+1) + a(n) + (-1)^n, with a(1) = a(2) = 1.at n=24A066983
- a(n) = 2*Fibonacci(2*n+1) - 1.at n=11A069403
- Duplicate of A069403.at n=11A085327
- Column k=4 sequence of array A103728.at n=9A103731
- Numbers that are the sum of exactly two sets of Fibonacci numbers.at n=39A122194
- Row sums of A128586.at n=24A128587
- a(1) = 1; a(2) = 9; for n>2, a(n) = smallest number of the form 4k+1 and a(n) > a(n-1) such that the pairwise sums of elements are all semiprimes.at n=7A175532
- Numbers that have 11 terms in their Zeckendorf representation.at n=12A179251
- Number of (w,x,y,z) with all terms in {1,...,n} and w^3>=x^3+y^3+z^3.at n=24A212100
- a(0)=1, a(1)=-2; a(n+2) = a(n+1) + a(n) + (period 3: repeat 3, 1, -1).at n=24A226328
- 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=22A253197
- 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=23A255978