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A337018
a(n) is the number of hexagons at distance n from the central hexagon of a hexaflake.
4
1, 6, 6, 18, 18, 6, 18, 18, 18, 54, 54, 30, 54, 42, 6, 18, 18, 18, 54, 54, 30, 54, 42, 18, 54, 54, 54, 162, 162, 90, 162, 126, 30, 90, 90, 66, 162, 150, 78, 126, 90, 6, 18, 18, 18, 54, 54, 30, 54, 42, 18, 54, 54, 54, 162, 162, 90, 162, 126, 30, 90, 90, 66, 162
OFFSET
0,2
COMMENTS
For symmetry reasons, a(n) is a multiple of 6 for any n > 0.
LINKS
FORMULA
a(n) = 6 iff n belongs to A007051.
PROG
(PARI) See Links section.
CROSSREFS
Cf. A337132 (Vicsek fractal analog), A337545 (pentaflake analog), A339124 (golden square fractal analog).
Cf. A007051.
Sequence in context: A315816 A315817 A325696 * A315818 A315819 A301682
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Nov 21 2020
STATUS
approved