A123828 Orientable embedding number gamma_1 for bouquet B_n.

2, 80, 3360, 161280

Offset

2,1

References

Jonathan L. Gross and Thomas W. Tucker, Enumerating graph embeddings and partial-duals by genus and Euler genus, ECA 1:1 (2021) Article S2S1. See Table 1.

J. L. Gross and J. Yellen, eds., Handbook of Graph Theory, CRC Press, 2004; p. 649.

Links

Table of n, a(n) for n=2..5.

Crossrefs

A column of A123850.

Sequence in context: A073499 A378312 A222826 * A260659 A351854 A210277

Adjacent sequences: A123825 A123826 A123827 * A123829 A123830 A123831

Keyword

nonn,more

Author

N. J. A. Sloane, Nov 19 2006

Status

approved