A135527 Number of polyenes with 2n carbon atoms.

1, 1, 2, 4, 11, 30, 96, 319, 1135, 4150, 15690, 60506, 237853, 948455, 3831226, 15642947, 64484774, 268055006, 1122646262, 4733357618, 20078203381, 85637471487, 367093826598, 1580813221552, 6836181195493

Offset

1,3

References

J. V. Knop, W. R. Mueller, K. Szymanski and N. Trinajstich, Computer Generation of Certain Classes of Molecules, Zagreb, 1985, see p. 56.

N. Trinajstić, S. Nikolić, J. V. Knop, W. R. Müller and K. Szymanski, Computational Chemical Graph Theory: Characterization, Enumeration, and Generation of Chemical Structures by Computer Methods, Ellis Horwood, 1991.

Links

Andrey Zabolotskiy, Table of n, a(n) for n = 1..50 (from Trinajstić et al., Table III.13 on p. 155)

Crossrefs

Sequence in context: A148156 A148157 A141268 * A215460 A339225 A148158

Adjacent sequences: A135524 A135525 A135526 * A135528 A135529 A135530

Keyword

nonn

Author

Neven Juric (neven.juric(AT)apis-it.hr), Feb 10 2008

Status

approved