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A317967
Number of connected line structures or "topoglyphs" with n regions.
2
1, 1, 4, 23, 186
OFFSET
0,3
COMMENTS
The precise definition is hard to understand from the article. But Marcel Golay was a famous scientist, and this article seems to have been overlooked, so the sequences are worth placing on record.
REFERENCES
Marcel J. E. Golay, Topoglyphs, IEEE Trans. Computers, C-27 (No. 2, Feb. 1978), 164-167.
CROSSREFS
Cf. A317968.
A250001 is a similar sequence.
Sequence in context: A192840 A302189 A292971 * A186117 A108953 A369140
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Aug 27 2018
STATUS
approved