This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A285765 Number of connected induced (non-null) subgraphs of the n X n queen graph. 14
 1, 15, 495, 64815, 33478163, 68694593248 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Eric Weisstein's World of Mathematics, Queen Graph Eric Weisstein's World of Mathematics, Vertex-Induced Subgraph MATHEMATICA Table[g = GraphData[{"Queen", {n, n}}]; -1 + ParallelSum[ Boole@ ConnectedGraphQ@ Subgraph[g, s], {s, Subsets@ Range[n^2]}], {n, 4}] CROSSREFS Cf. A020873 (wheel), A059020 (ladder), A059525 (grid), A286139 (king), A286182 (prism), A286183 (antiprism), A286184 (helm), A286185 (Möbius ladder), A286186 (friendship), A286187 (web), A286188 (gear), A286189 (rook). Sequence in context: A151816 A013431 A013432 * A287070 A062752 A218226 Adjacent sequences:  A285762 A285763 A285764 * A285766 A285767 A285768 KEYWORD nonn,more AUTHOR Giovanni Resta, May 04 2017 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.

Last modified August 22 08:24 EDT 2019. Contains 326172 sequences. (Running on oeis4.)