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!)
 A234545 Number of (n+1)X(3+1) 0..5 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant stress 1X1 tilings) 1
 7056, 39188, 217304, 1207448, 6716768, 37416120, 208681224, 1165446648, 6516597192, 36485687312, 204519881000, 1147919287576, 6450460720072, 36293012495432, 204433220949360, 1152984059654840, 6510049369565848 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A234549 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 49 FORMULA Empirical recurrence of order 49 (see link above) EXAMPLE Some solutions for n=2 ..2..4..1..2....3..3..3..1....1..5..2..2....0..5..4..3....5..3..0..1 ..5..4..4..2....0..3..0..1....3..4..4..1....2..4..0..2....1..2..2..0 ..5..1..4..5....2..2..2..0....3..1..4..4....2..1..0..5....1..5..2..3 CROSSREFS Sequence in context: A116278 A206050 A116332 * A250850 A071131 A238520 Adjacent sequences:  A234542 A234543 A234544 * A234546 A234547 A234548 KEYWORD nonn AUTHOR R. H. Hardin, Dec 28 2013 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.)