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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A248063 Number of length n+5 0..3 arrays with some disjoint triples in each consecutive six terms having the same sum 1
1804, 3364, 6364, 12124, 23164, 44284, 84604, 161824, 309724, 592924, 1135114, 2173054, 4159984, 7963744, 15245944, 29187364, 55877344, 106973434, 204793204, 392062324, 750576604, 1436928334, 2750902624, 5266417594, 10082200714 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A248068

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 2*a(n-1) -a(n-4) +a(n-5) +a(n-6) -2*a(n-7) -2*a(n-8) +2*a(n-10) -a(n-12) +a(n-13) +a(n-15) -a(n-16)

EXAMPLE

Some solutions for n=6

..2....3....1....2....0....3....3....2....2....2....2....3....0....2....1....0

..0....2....2....3....1....2....1....2....1....1....2....2....2....2....3....0

..1....2....1....2....0....0....2....1....2....1....0....1....1....1....2....2

..1....1....1....3....0....0....3....3....2....1....1....3....3....3....1....3

..2....3....2....1....1....2....0....1....1....3....3....1....2....3....1....1

..0....3....1....1....2....1....1....3....2....2....2....2....0....3....2....2

..0....3....1....2....0....3....1....0....0....2....2....3....2....0....3....2

..2....2....2....3....3....0....1....2....1....3....2....2....2....2....3....0

..3....2....1....2....2....2....2....3....2....1....0....1....3....1....2....2

..1....1....1....3....2....0....1....1....0....3....3....1....3....1....1....1

..2....3....0....1....1....0....2....1....3....1....3....3....0....3....3....3

CROSSREFS

Sequence in context: A180685 A222418 A252676 * A256027 A196788 A252029

Adjacent sequences:  A248060 A248061 A248062 * A248064 A248065 A248066

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 30 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 24 13:52 EST 2020. Contains 331194 sequences. (Running on oeis4.)