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!)
A251339 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to a nonzero multiple of 3 1
13275, 189129, 3014066, 55048995, 1151715397, 27005232676, 687109914883, 18427859055437, 510268616367258, 14398478349467699, 410803016154228437, 11796821936379895236, 340059287206039260739, 9824866995580418794877 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A251343

LINKS

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

R. H. Hardin, Empirical recurrence of order 41

FORMULA

Empirical recurrence of order 41 (see link above)

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A184001 A345583 A031620 * A318252 A034625 A283155

Adjacent sequences:  A251336 A251337 A251338 * A251340 A251341 A251342

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 01 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 June 25 06:20 EDT 2021. Contains 345452 sequences. (Running on oeis4.)