来自在线整数百科全书的问候语!http://oeis.org/ Search: id:a081621 Showing 1-1 of 1 %I A081621 %S A081621 0,0,0,0,0,0,0,0,1,0,1,1,3,4,12,23,73,192,651,2070,7290,25381,91441, %T A081621 329824,1204737,4412031,16248772,59995535,222231424,825028656, %U A081621 3069993552,11446245342,42758608761,160012226334,599822851579,2252137171764,8469193859271 %N A081621 Number of n-node triangulations of the sphere with minimal degree 5. %C A081621 Other face sizes bigger than 5 and 6 are allowed and there can be more than 12 vertices with degree 5. %C A081621 Convex polytopes with minimum degree at least 5. 该序列是从文件MaleCult.txt中提取的,与Primtri分布有关。%%C A081621 Grace推测,所有单位体积中最大体积的多面体都是“中间”(所有的面三角形和顶点度m或m+1,其中M<6-12/N)。13内侧多面体有12个顶点5度和6度的N-12个顶点。最大体积问题(A081314)的所有已知数值解都具有这一性质。%C.A081621,哈丁、斯隆和史米斯给出的二十面体对称球面上的点的三角排列是大N 0%H A081621 Gunnar Brinkmann和Brendan McKay的例子,Primtri与FulGEN生成某些平面图形的程序. %%A081621 Gunnar Brinkmann和Brendan McKay,Primtri与FulGEN用于生成某些类型的平面图的程序[缓存的拷贝,PDF文件,没有活动链接,具有权限] %%A081621 G. Brinkmann和B. D. McKay,5度平面三角剖分的构造Discr。数学301(2005),147—163.0%H A081621组合对象-组合对象服务器,生成平面图%H A081621 D. W. Grace,搜索最大的多面体。数学COMP17,197-199(1963)%%H A081621 R. H. Hardin,N.J.A.斯隆和W. D. Smith,二十面体对称球面码%H A081621 Hugo Pfoertner,二十面体最佳覆盖物。%H A081621鼠尾草,公共图%H A081621 Thom Sulanke,曲面三角剖分生成(SurfTIII)(也有子页).{%A081621,顶点用字母A,B表示,…the neighbor lists are for a(14)=1: (bcdef, afghc, abhid, acije, adjkf, aeklgb, bflmh, bgmic, chmnjd, dinke, ejnlf, fknmg, glnih, imlkj) %e A081621 a(15)=1: (bcdefg, aghic, abijd, acjke, adklf, aelmg, afmhb, bgmni, bhnjc, cinokd, djole, ekomf, flonhg, hmoji, jnmlk); a(16)=3: (bcdef, afghc, abhijd, acjke, adklf, aelmgb, bfmnh, bgnic, chnoj, ciokd, djople, ekpmf, flpng, gmpoih, inpkj, konml), (bcdef, afghc, abhijd, acjke, adklf, aelmgb, bfmnh, bgnic, chnoj, ciopkd, djple, ekpmf, flpong, gmoih, inmpj, jomlk), (bcdef, afghijc, abjkd, ackle, adlmf, aemgb, bfmnh, bgnoi, bhopj, bipkc, cjpld, dkponme, elngf, gmloh, hnlpi, iolkj); %Y A081621 Cf. A000109, A000103, A081314. %K A081621 nonn %O A081621 4,13 %A A081621 _Hugo Pfoertner_, Mar 24 2003 %E A081621 More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 05 2007 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE