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A125064 Number of monocyclic skeletons with a ring size of n. See the paper by Hendrickson and Parks for details. +0
6
1, 2, 11, 39, 169, 534, 1612, 3894, 8771, 16307, 29391, 43291, 69429, 83571 (list; graph; listen)
OFFSET

16,2

REFERENCES

J. B. Hendrickson and C. A. Parks, "Generation and Enumeration of Carbon skeletons", J. Chem. Inf. Comput. Sci, vol. 31 (1991) pp. 101-107. See Table 6 on page 103.

EXAMPLE

If the ring size 16 then the number of skeletons is 1.

If the ring size 15 then the number of skeletons is 2.

If the ring size 14 then the number of skeletons is 11.

If the ring size 13 then the number of skeletons is 39.

If the ring size 3 then the number of skeletons is 83571.

CROSSREFS

Cf. A000602, A036671, A112410, A112619, A112408, A112424, A112425, A112426.

Sequence in context: A166989 A143550 A000175 this_sequence A055329 A152895 A000822

Adjacent sequences: A125061 A125062 A125063 this_sequence A125065 A125066 A125067

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Jan 05 2007

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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