A337642 Coordination sequence for Even Conant Lattice with respect to origin.

1, 2, 3, 4, 5, 6, 7, 6, 7, 9, 10, 11, 11, 11, 14, 12, 12, 15, 17, 18, 18, 20, 20, 20, 21, 22, 24, 23, 24, 25, 27, 25, 23, 26, 29, 32, 31, 34, 39, 34, 30, 36, 39, 37, 39, 44, 50, 42, 40, 45, 46, 49, 52, 50, 49, 46, 46, 51, 50, 54, 56, 48, 48, 52, 54, 59, 57, 54

Offset

0,2

Comments

See A328078 for more information. The lattice (and therefore the sequence) is infinite, although my illustration for the initial terms shows only the first 10 generations of the construction.

Links

Rémy Sigrist, Table of n, a(n) for n = 0..8787

Rémy Sigrist, Plots of first 2584 terms (blue), 4744 terms (green), and 8788 terms (red)

Rémy Sigrist, C++ program for A337642

N. J. A. Sloane, The Even Conant Lattice

N. J. A. Sloane, Illustration for a(0)-a(16)

Index entries for coordination sequences

Prog

(C++) See Links section.

Crossrefs

Cf. A328078, A328080; A233775.

Sequence in context: A000026 A005599 A071934 * A331303 A161658 A066853

Adjacent sequences: A337639 A337640 A337641 * A337643 A337644 A337645

Keyword

nonn

Author

N. J. A. Sloane, Sep 18 2020

Extensions

More terms from Rémy Sigrist, Sep 19 2020

Status

approved