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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A249172 Number of length 1+6 0..n arrays with every seven consecutive terms having four times the sum of some three elements equal to three times the sum of the remaining four 1
2, 395, 2258, 11177, 39066, 115437, 287988, 650085, 1339852, 2581121, 4671630, 8093245, 13377140, 21392687, 33096114, 49833787, 73122200, 105132375, 147967210, 204844311, 278931122, 374403885, 495751168, 648915047, 839349796 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 1 of A249171

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..38

EXAMPLE

Some solutions for n=6

..5....4....3....1....0....4....2....5....4....4....2....1....2....1....4....2

..1....5....6....0....2....5....3....1....6....4....0....4....1....1....3....4

..0....6....6....0....6....4....1....5....2....6....1....4....5....2....2....3

..4....6....2....0....6....1....6....3....5....0....0....1....5....4....0....3

..6....0....4....3....5....3....3....0....3....0....3....2....2....1....1....0

..3....4....4....6....2....6....0....1....4....0....4....6....0....1....1....0

..2....3....3....4....0....5....6....6....4....0....4....3....6....4....3....2

CROSSREFS

Sequence in context: A249260 A249261 A249262 * A249173 A249174 A249175

Adjacent sequences:  A249169 A249170 A249171 * A249173 A249174 A249175

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 22 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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 27 03:09 EST 2022. Contains 350601 sequences. (Running on oeis4.)