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!)
A262790 Number of (n+2)X(3+2) 0..1 arrays with each row divisible by 5 and column not divisible by 5, read as a binary number with top and left being the most significant bits. 1
76, 528, 4898, 38688, 269638, 1873728, 13349904, 94039306, 656071804, 4575740208, 32015699522, 223804093392, 1563835045222, 10928290592736, 76414449902016, 534330839601994, 3737091593822380, 26139191772693840, 182862036532384610 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A262795.
LINKS
FORMULA
Empirical: a(n) = 7*a(n-1) +2438*a(n-4) -17066*a(n-5) -2193828*a(n-8) +15356796*a(n-9) +1012143986*a(n-12) -7085007902*a(n-13) -274571219965*a(n-16) +1921998539755*a(n-17) +46824231026412*a(n-20) -327769617184884*a(n-21) -5180403909036816*a(n-24) +36262827363257712*a(n-25) +375348133713055716*a(n-28) -2627436935991390012*a(n-29) -17669998041050990187*a(n-32) +123689986287356931309*a(n-33) +526338150774349790590*a(n-36) -3684367055420448534130*a(n-37) -9412502562578384921036*a(n-40) +65887517938048694447252*a(n-41) +91478334812736629058378*a(n-44) -640348343689156403408646*a(n-45) -389202483948737967210263*a(n-48) +2724417387641165770471841*a(n-49) +306627613331565950494576*a(n-52) -2146393293320961653462032*a(n-53)
EXAMPLE
Some solutions for n=4
..0..1..1..1..1....1..1..0..0..1....0..1..0..1..0....0..0..0..0..0
..0..0..1..0..1....0..1..1..1..1....0..0..1..0..1....0..0..0..0..0
..0..1..1..1..1....0..1..1..1..1....0..1..0..1..0....0..0..0..0..0
..0..1..1..1..1....0..0..0..0..0....1..1..1..1..0....1..1..1..1..0
..1..1..0..0..1....0..0..1..0..1....0..0..1..0..1....1..1..0..0..1
..0..0..1..0..1....0..0..0..0..0....0..0..1..0..1....0..0..0..0..0
CROSSREFS
Cf. A262795.
Sequence in context: A234779 A264475 A363843 * A184680 A129626 A200167
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 02 2015
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 4 04:21 EST 2024. Contains 370522 sequences. (Running on oeis4.)