This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A204837 Number of (n+1)X6 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero 1
 2048, 21380, 157872, 1438706, 11643054, 102186340, 852866652, 7401341360, 62559638330, 541098230290, 4603000012148, 39777249760844, 339717186256760, 2935286205895216, 25139048468622558, 217230974640825190 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A204840 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..2..1..0..1..0..1....0..2..2..2..1..0....2..2..0..2..2..0....0..2..2..0..2..2 ..1..0..1..2..1..1....1..0..1..0..1..2....1..1..2..0..2..2....1..1..0..1..1..0 ..1..1..0..1..0..1....1..2..2..2..1..0....2..2..0..2..2..0....1..1..2..0..2..2 ..1..0..1..2..1..0....1..0..1..0..1..2....0..2..2..1..1..2....1..1..0..1..0..1 ..0..1..0..1..0..1....2..2..0..2..0..2....2..2..0..2..2..0....0..2..2..1..2..2 CROSSREFS Sequence in context: A195069 A316499 A135290 * A100629 A247934 A195659 Adjacent sequences:  A204834 A204835 A204836 * A204838 A204839 A204840 KEYWORD nonn AUTHOR R. H. Hardin Jan 19 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 October 21 08:16 EDT 2019. Contains 328292 sequences. (Running on oeis4.)