The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A247931 Number of length 4+4 0..n arrays with some disjoint pairs in every consecutive five terms having the same sum 1
 256, 3649, 31092, 157589, 552708, 1551533, 3785236, 8185797, 16336592, 29964505, 51882716, 85160905, 134184772, 203205957, 298757712, 427405305, 597735952, 817776021, 1099449280, 1455028945, 1897411468, 2442220549, 3107178892 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 4 of A247927 LINKS R. H. Hardin, Table of n, a(n) for n = 1..70 EXAMPLE Some solutions for n=4 ..0....2....0....0....2....2....0....1....2....2....1....2....2....0....0....0 ..1....1....1....0....0....0....1....1....3....3....4....4....0....2....3....3 ..3....0....4....3....3....2....3....1....4....1....4....3....0....1....1....2 ..1....3....3....1....1....3....1....4....2....0....2....0....2....1....3....3 ..2....1....1....2....3....3....0....1....3....0....3....1....2....1....2....4 ..4....4....4....3....0....1....0....4....1....4....3....1....2....2....0....3 ..0....2....1....2....4....2....4....0....0....4....2....4....4....0....3....2 ..2....2....2....4....2....4....1....1....4....4....1....0....0....2....4....2 CROSSREFS Sequence in context: A185923 A185919 A259320 * A186200 A186197 A231842 Adjacent sequences: A247928 A247929 A247930 * A247932 A247933 A247934 KEYWORD nonn AUTHOR R. H. Hardin, Sep 26 2014 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 October 3 20:04 EDT 2023. Contains 365870 sequences. (Running on oeis4.)