180583603200
domain: N
Appears in sequences
- a(1)=1; a(n) = n!*Fibonacci(n+2), n > 1.at n=11A005922
- Expansion of e.g.f. (2+x-x^2)/(1-x)^2.at n=13A052649
- Number of symmetric ways to lace a shoe that has n pairs of eyelets such that each eyelet has at least one direct connection to the opposite side.at n=12A078700
- a(n) = (2*n+1)*(n-1)!.at n=13A129326