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

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A250965 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element 9
 170, 1592, 1592, 14423, 34988, 14423, 130025, 768855, 768855, 130025, 1172956, 17233753, 42534386, 17233753, 1172956, 10588744, 390286993, 2395598690, 2395598690, 390286993, 10588744, 95612685, 8862302446, 134817198768 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ......170.......1592.........14423...........130025.............1172956 .....1592......34988........768855.........17233753...........390286993 ....14423.....768855......42534386.......2395598690........134817198768 ...130025...17233753....2395598690.....333998523952......46264786072136 ..1172956..390286993..134817198768...46264786072136...15830978769561242 .10588744.8862302446.7555575891628.6395621652233739.5432045141123489432 LINKS R. H. Hardin, Table of n, a(n) for n = 1..161 FORMULA Empirical for column k: k=1: [linear recurrence of order 7] k=2: [order 25] k=3: [order 75] EXAMPLE Some solutions for n=2 k=4 ..0..0..0..0..1....0..0..0..1..0....0..0..0..2..0....0..0..0..2..2 ..0..1..2..0..0....0..1..0..0..0....0..1..0..1..1....0..3..0..0..0 ..0..0..3..1..1....0..2..3..0..0....0..1..0..1..3....0..2..1..1..1 CROSSREFS Sequence in context: A206122 A259293 A262426 * A250958 A031614 A289648 Adjacent sequences: A250962 A250963 A250964 * A250966 A250967 A250968 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Nov 29 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 5 01:00 EST 2023. Contains 367565 sequences. (Running on oeis4.)