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A045744
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Noncrossing connected graphs on n nodes on a circle and having no four-sided faces.
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1
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1, 4, 22, 141, 988, 7337, 56749, 452332, 3689697, 30652931, 258465558, 2206330790, 19029531220, 165582392070, 1451789520435, 12813638048184, 113755675163767, 1015119850103821, 9100463691522759, 81923222827031025
(list; graph; refs; listen; history; internal format)
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