login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A125064 Number of monocyclic skeletons with a ring size of n. See the paper by Hendrickson and Parks for details. 5
1, 2, 11, 39, 169, 534, 1612, 3894, 8771, 16307, 29391, 43291, 69429, 83571 (list; graph; refs; listen; history; text; internal format)
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.

LINKS

Table of n, a(n) for n=16..29.

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: A276659 A187259 A296593 * A274326 A055329 A193005

Adjacent sequences:  A125061 A125062 A125063 * A125065 A125066 A125067

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi, Jan 05 2007

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 12 05:30 EDT 2021. Contains 343812 sequences. (Running on oeis4.)