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A215622 Number of loopless ({1,2,3},6)-spheres with n vertices. 0


%S 0,1,1,3,2,7,5,12,10,19,16,29,24,42,35,59,48,79,69,100,86,133,112,165,

%T 144,205,176,251,214,299,265,360,305,429,375,488,436,581,495,677,582,

%U 758,679,869,749,1000,868,1101,989,1259,1076,1410,1228

%N Number of loopless ({1,2,3},6)-spheres with n vertices.

%C Equivalently, ({2,3},6)-spheres, or 6-regular planar graphs with digonal and trigonal faces only. - _Andrey Zabolotskiy_, Mar 22 2019

%H Michel Deza, Mathieu Dutour Sikiric, <a href="https://doi.org/10.11650/twjm/1500406667">Zigzag and Central Circuit Structure of ({1,2,3},6)-spheres</a>, Taiwanese Journal of Mathematics, 16 (June 2012), No. 3, 913-940; see Table 1, p. 916.

%H Michel-Marie Deza, Mathieu Dutour Sikiric, Mikhail Ivanovitch Shtogrin, <a href="https://doi.org/10.1007/978-81-322-2449-5">Geometric Structure of Chemistry-Relevant Graphs</a>, Springer, 2015; see p. 107.

%K nonn

%O 1,4

%A _Jonathan Vos Post_, Aug 17 2012

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Last modified May 15 23:19 EDT 2021. Contains 343937 sequences. (Running on oeis4.)