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!)
A297462 Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s. 1
64, 299, 6888, 55713, 862112, 8800153, 116817805, 1310421193, 16359022199, 190745746116, 2322860397083, 27514222405770, 331710789850250, 3954342819972111, 47479319283362042, 567478249014805267 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A297457.

LINKS

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

R. H. Hardin, Empirical recurrence of order 72

FORMULA

Empirical recurrence of order 72 (see link above)

EXAMPLE

Some solutions for n=4

..0..0..0..1. .1..0..0..1. .1..0..0..0. .1..0..0..0. .0..0..1..0

..1..0..0..1. .0..0..0..0. .1..0..0..0. .0..0..0..0. .1..0..0..0

..0..0..0..1. .1..1..1..0. .1..0..0..0. .0..0..0..1. .1..0..0..0

..0..0..0..1. .0..1..0..0. .0..0..1..0. .0..0..0..0. .0..0..0..0

..0..1..0..1. .0..0..0..0. .0..0..0..0. .0..1..1..0. .1..1..0..0

..0..1..0..0. .0..0..1..0. .1..0..1..0. .0..1..1..0. .0..1..1..0

CROSSREFS

Cf. A297457.

Sequence in context: A029873 A218069 A017258 * A297699 A297888 A298493

Adjacent sequences:  A297459 A297460 A297461 * A297463 A297464 A297465

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 30 2017

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 October 27 19:59 EDT 2020. Contains 338036 sequences. (Running on oeis4.)