The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A369995 Irregular triangle read by rows: T(n,k) is the number of induced k-vertex subgraphs, up to isomorphism, of the hypercube graph of dimension n >= 0, 0 <= k <= 2^n. 3
 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 3, 6, 3, 3, 1, 1, 1, 1, 2, 3, 7, 12, 26, 42, 63, 54, 49, 27, 19, 6, 4, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,8 LINKS Table of n, a(n) for n=0..35. EXAMPLE Triangle begins: 1, 1; 1, 1, 1; 1, 1, 2, 1, 1; 1, 1, 2, 3, 6, 3, 3, 1, 1; 1, 1, 2, 3, 7, 12, 26, 42, 63, 54, 49, 27, 19, 6, 4, 1, 1; ... CROSSREFS Cf. A039754 (up to automorphisms of the hypercube), A369996 (row sums), A369997 (connected subgraphs). Sequence in context: A367313 A201075 A131338 * A242784 A265313 A106498 Adjacent sequences: A369992 A369993 A369994 * A369996 A369997 A369998 KEYWORD nonn,tabf,more AUTHOR Pontus von Brömssen, Feb 07 2024 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 15 11:14 EDT 2024. Contains 373407 sequences. (Running on oeis4.)