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A007813 Number of planar Steinhaus graphs with n nodes. 7
1, 2, 4, 8, 16, 32, 59, 75, 65, 56, 50, 44, 36, 31, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

Wayne M. Dymacek, Jean-Guy Speton and Tom Whaley, Planar Steinhaus Graphs, Congressus Numerantium, volumes 142-147, 2000.

LINKS

Table of n, a(n) for n=1..78.

FORMULA

a(n) = 26 for n>15.

CROSSREFS

Sequence in context: A254940 A196724 A056644 * A289657 A005309 A078389

Adjacent sequences:  A007810 A007811 A007812 * A007814 A007815 A007816

KEYWORD

nonn

AUTHOR

Wayne M. Dymacek (wdymacek(AT)wlu.edu)

STATUS

approved

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Last modified October 19 17:55 EDT 2018. Contains 316376 sequences. (Running on oeis4.)