328657725
domain: N
Appears in sequences
- a(n) = 4*a(n-1) - a(n-2), with a(0) = 0, a(1) = 3.at n=15A005320
- Numerators of continued fraction convergents to sqrt(12).at n=14A041016
- Numerators of continued fraction convergents to sqrt(507).at n=14A041968
- a(n) = 4*a(n-2) - a(n-4).at n=29A083336
- Numerators of the lower principal convergents and the lower intermediate convergents to 3^(1/2).at n=29A143643
- Numerators of the other-side convergents to sqrt(3).at n=29A259593
- The number of links of a qualifying "snake" polyline that connects the midpoints of opposite sides of the n-th regular integer hexagon that allows such a construction.at n=15A356047