A307447 Second coordinate of a contiguous path on the odd numbered points of a square lattice leading to a distance-limited bijection with the even numbered points of a square lattice rotated by Pi/6 around the common point (0,0). A307446 gives the first coordinate.

1, 1, 3, 5, 5, 5, 3, 3, 3, 5, 7, 7, 9, 11, 11, 11, 13, 15, 15, 17, 19, 19, 19, 17, 17, 17, 19, 21, 21, 21, 19, 19, 19, 17, 15, 15, 13, 11, 11, 11, 9, 9, 9, 11, 13, 13, 13, 11, 11, 11, 13, 15, 15, 17, 19, 19, 19, 21, 23, 23, 25, 27, 27, 27, 25, 25, 25, 27

Offset

1,3

Comments

For a description of the construction and visualizations see A307446.

Links

Hugo Pfoertner, Table of n, a(n) for n = 1..10000

Index entries for sequences related to coordinates of 2D curves

Prog

See A307446 for PARI code.

Crossrefs

Cf. A307110, A307446.

Coordinates of corresponding points on rotated lattice: A307482, A307483.

Sequence in context: A307634 A265222 A160585 * A016658 A331210 A330874

Adjacent sequences: A307444 A307445 A307446 * A307448 A307449 A307450

Keyword

nonn

Author

Hugo Pfoertner, Apr 10 2019

Status

approved