888033051315
domain: N
Appears in sequences
- a(n) = 4*a(n-1) - a(n-2), with a(0) = 0, a(1) = 3.at n=21A005320
- Numerators of continued fraction convergents to sqrt(12).at n=20A041016
- Numerators of continued fraction convergents to sqrt(507).at n=20A041968
- 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=21A356047