The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A248989 Number of length 2+4 0..n arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two 1
 2, 53, 204, 585, 1654, 4137, 7964, 14661, 23778, 39441, 60264, 90193, 126626, 176141, 239692, 322385, 419046, 539841, 675924, 853485, 1053130, 1293121, 1559752, 1873217, 2232130, 2653637, 3111812, 3639577, 4210230, 4884793, 5609564, 6430901 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 2 of A248987 LINKS R. H. Hardin, Table of n, a(n) for n = 1..196 EXAMPLE Some solutions for n=6 ..6....5....0....6....0....5....1....2....0....0....1....0....3....3....3....2 ..3....0....1....2....3....3....4....2....1....6....4....0....3....3....6....5 ..5....2....3....4....1....6....5....4....0....2....5....3....6....1....2....6 ..1....1....6....2....5....2....4....3....3....2....2....6....6....3....4....2 ..5....2....5....1....6....4....6....4....1....0....3....1....2....0....5....0 ..1....0....5....1....5....5....6....2....0....5....1....5....3....3....3....2 CROSSREFS Sequence in context: A249663 A130698 A248988 * A248990 A248991 A248992 Adjacent sequences:  A248986 A248987 A248988 * A248990 A248991 A248992 KEYWORD nonn AUTHOR R. H. Hardin, Oct 18 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 22 07:34 EDT 2020. Contains 337289 sequences. (Running on oeis4.)