A337262 A328078(2*n+1).

2, 5, 15, 48, 169, 618, 2319, 8804, 33649, 129046, 495779, 1906520, 7335029, 28227578, 108642983, 418176700, 1609656953, 6196050718, 23850681323, 91809753632, 353409321213

Offset

0,1

Comments

Number of cells in odd generations of the Conant Gasket (or Conant Lattice).

See A328078 for illustrations.

Links

Table of n, a(n) for n=0..20.

Crossrefs

Cf. A328078, A328080.

Sequence in context: A149928 A003430 A149929 * A149930 A189924 A360233

Adjacent sequences: A337259 A337260 A337261 * A337263 A337264 A337265

Keyword

nonn,more

Author

N. J. A. Sloane, Aug 22 2020

Extensions

a(5)-a(13) from Rémy Sigrist, Oct 14 2019

a(14)-a(21) from Rémy Sigrist, Sep 09 2020

Status

approved