The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons 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 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A206054 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one 9
 48, 255, 255, 1338, 2310, 1338, 7041, 20400, 20400, 7041, 37020, 180195, 295392, 180195, 37020, 194691, 1590378, 4256868, 4256868, 1590378, 194691, 1023822, 14037225, 61165512, 99399924, 61165512, 14037225, 1023822, 5384085, 123893883 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ......48........255.........1338...........7041............37020 .....255.......2310........20400.........180195..........1590378 ....1338......20400.......295392........4256868.........61165512 ....7041.....180195......4256868.......99399924.......2308027074 ...37020....1590378.....61165512.....2308027074......86276125692 ..194691...14037225....878480541....53518920690....3216834301377 .1023822..123893883..12614174310..1240395191991..119812800012048 .5384085.1093502865.181122252378.28744156779339.4461032943350559 LINKS R. H. Hardin, Table of n, a(n) for n = 1..220 EXAMPLE Some solutions for n=4 k=3 ..1..0..0..2....1..0..1..1....0..2..0..0....1..0..1..2....0..1..1..2 ..0..0..1..1....2..0..1..2....2..2..2..2....0..0..1..2....1..1..2..2 ..1..1..1..0....2..0..1..1....1..1..1..2....0..1..1..1....2..2..2..1 ..1..0..0..0....2..0..1..2....0..1..2..2....0..0..1..0....0..0..0..0 ..2..0..1..2....2..0..1..2....1..1..1..1....0..1..1..1....1..2..2..0 CROSSREFS Sequence in context: A157913 A181773 A052683 * A206047 A223434 A235911 Adjacent sequences:  A206051 A206052 A206053 * A206055 A206056 A206057 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 03 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 9 08:41 EST 2021. Contains 349627 sequences. (Running on oeis4.)