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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A241435 T(n,k)=Number of nXk 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4 14
 2, 3, 3, 4, 5, 4, 7, 10, 2, 7, 10, 21, 22, 3, 10, 15, 45, 74, 97, 5, 15, 24, 88, 158, 515, 213, 6, 24, 35, 181, 448, 1563, 1527, 381, 9, 35, 54, 378, 1272, 5915, 7495, 5304, 1005, 10, 54, 83, 710, 3284, 22712, 45139, 37148, 20690, 1900, 15, 83, 124, 1460, 8331, 76145 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ..2..3.....4......7.......10.........15..........24..........35..........54 ..3..5....10.....21.......45.........88.........181.........378.........710 ..4..2....22.....74......158........448........1272........3284........8331 ..7..3....97....515.....1563.......5915.......22712.......76145......270960 .10..5...213...1527.....7495......45139......282527.....1304136.....6927135 .15..6...381...5304....37148.....377314.....4122537....29425635...269064197 .24..9..1005..20690...218885....4136727....79901137..1058201862.16609740868 .35.10..1900..61348..1059975...34541924..1231102996.34796682706 .54.15..4137.257119..7257895..418453966.26880310825 .83.21.10518.920918.44141371.4088141292 LINKS R. H. Hardin, Table of n, a(n) for n = 1..126 FORMULA Empirical for column k: k=1: a(n) = a(n-2) +2*a(n-3) k=2: [order 11] for n>13 Empirical for row n: n=1: a(n) = a(n-2) +2*a(n-3) n=2: [order 22] for n>24 EXAMPLE Some solutions for n=4 k=4 ..2..2..3..3....2..2..3..3....2..2..3..2....3..2..3..2....3..2..3..2 ..2..1..3..2....2..1..1..2....2..1..1..0....2..1..1..0....2..1..1..2 ..3..1..0..0....3..3..0..0....3..1..0..2....3..1..3..2....3..1..2..2 ..2..0..0..0....2..2..2..0....3..2..0..0....3..2..1..2....2..0..0..0 CROSSREFS Column and row 1 are A159288(n+1) Sequence in context: A179840 A357431 A240153 * A349320 A078338 A338587 Adjacent sequences: A241432 A241433 A241434 * A241436 A241437 A241438 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Apr 22 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 January 28 08:35 EST 2023. Contains 359850 sequences. (Running on oeis4.)