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!)
A200470 Number of 0..n arrays x(0..5) of 6 elements with each no smaller than the sum of its four previous neighbors modulo (n+1) 1
20, 98, 455, 1213, 3328, 7140, 15446, 28023, 51356, 85228, 141665, 217763, 335496, 489964, 716380, 1000977, 1400376, 1894984, 2565347, 3373769, 4439204, 5709980, 7346722, 9262315, 11681488, 14491782, 17981005, 21979651, 26872568, 32446832 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A200469

LINKS

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

FORMULA

Empirical: a(n) = a(n-2) +a(n-4) -a(n-6) +3*a(n-8) -3*a(n-10) -3*a(n-12) +3*a(n-14) +2*a(n-15) -3*a(n-16) -2*a(n-17) +3*a(n-18) -2*a(n-19) +3*a(n-20) +2*a(n-21) -3*a(n-22) -6*a(n-23) +a(n-24) +6*a(n-25) -a(n-26) +6*a(n-27) -a(n-28) -6*a(n-29) +6*a(n-31) +a(n-32) -6*a(n-33) +a(n-34) -6*a(n-35) -a(n-36) +6*a(n-37) +3*a(n-38) -2*a(n-39) -3*a(n-40) +2*a(n-41) -3*a(n-42) +2*a(n-43) +3*a(n-44) -2*a(n-45) -3*a(n-46) +3*a(n-48) +3*a(n-50) -3*a(n-52) +a(n-54) -a(n-56) -a(n-58) +a(n-60)

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Sequence in context: A039610 A177498 A157429 * A128676 A039455 A294112

Adjacent sequences:  A200467 A200468 A200469 * A200471 A200472 A200473

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 18 2011

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 September 18 12:28 EDT 2020. Contains 337169 sequences. (Running on oeis4.)