0,1

The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice.

G. Nebe and N. J. A. Sloane, Home page for hexagonal (or triangular) lattice A2

unique(A038587).

Cf. A005882, A038587.

Sequence in context: A125627 A108757 A038046 this_sequence A111041 A079830 A028882

Adjacent sequences: A038585 A038586 A038587 this_sequence A038589 A038590 A038591

nonn

njas