The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A212941 Number of n X 6 0..5 arrays with no column j greater than or equal to than column j-1 in all rows. 1
 1, 152747323, 28744943858947, 2438624218076957695, 153322267564381742818531, 8389667096561737605103329223, 427593510370812774462812710051387, 20973117493971065058428815227499445215 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Column 6 of A212943. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 130453*a(n-1) -6763333836*a(n-2) +185208872760324*a(n-3) -2991440828618168976*a(n-4) +29966228467174160130816*a(n-5) -189618846625740940674481152*a(n-6) +754213725094693350993932353536*a(n-7) -1831929539263722316502211827073024*a(n-8) +2545588680910314328406052486644760576*a(n-9) -1758206800538810904218951296840095498240*a(n-10) +418951577236630476027552063815969641857024*a(n-11). Empirical: a(n) = 6*15876^n -3*4536^n +2*1512^n +3136^n -5*27216^n -462^n -6*7056^n -9261^n +4*12096^n +2*2646^n +46656^n. - R. J. Mathar, Jun 27 2012 EXAMPLE Some solutions for n=4 ..5..2..2..5..4..1....5..2..4..4..2..0....5..4..2..3..0..4....5..3..3..4..1..5 ..0..1..4..4..1..4....0..5..4..0..2..1....3..5..3..1..5..3....3..1..2..1..5..5 ..3..1..2..2..4..5....3..2..0..2..4..2....4..0..0..2..1..1....0..3..0..5..5..0 ..0..4..1..0..5..3....5..3..5..0..4..3....5..3..0..4..5..2....0..4..3..1..4..2 CROSSREFS Cf. A212943. Sequence in context: A160688 A151696 A221555 * A022249 A204605 A289248 Adjacent sequences: A212938 A212939 A212940 * A212942 A212943 A212944 KEYWORD nonn AUTHOR R. H. Hardin, May 31 2012 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.

Last modified October 3 14:07 EDT 2023. Contains 365866 sequences. (Running on oeis4.)