139104
domain: N
Appears in sequences
- Fibonacci sequence beginning 0, 3.at n=24A022086
- a(n) = 3*Fibonacci(2*n) + 0^n.at n=12A097134
- a(0) = 1; for n>0, a(n) = 3*Fibonacci(n).at n=24A097135
- Expansion of g.f. (3-x)*(1+3*x+x^2)/((1-x-x^2)*(1+x-x^2)).at n=22A099256
- G.f.: x^2*(3+3*x-2*x^2)/ ( (x^2-x-1) * (x^2+x-1)).at n=24A122012
- Row sums of A131325.at n=23A131326
- The sum of the two numbers in an amicable pair, A002025(n) + A002046(n).at n=8A180164
- Numbers with prime factorization pqr^3s^5.at n=18A190475
- Triangular array: the fusion of polynomial sequences P and Q given by p(n,x)=(x+2)^n and q(n,x)=(x+1)^n.at n=49A193724
- Mirror of the triangle A193724.at n=50A193725
- a(n) = Fibonacci(n)*A132973(n) for n>=1, with a(0)=1, where A132973 lists the coefficients in psi(-q)^3/psi(-q^3) and where psi() is a Ramanujan theta function.at n=24A205970
- The sum (in nondecreasing order) of the two numbers in an amicable pair.at n=10A259953
- Numbers that are a product of distinct Fibonacci numbers (A000045) and also a product of distinct Lucas numbers (A000032, including 2).at n=22A274371