This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A213805 Number of 7X7 0..n symmetric arrays with all rows summing to floor(n*7/2) 0
 35150, 133721189, 46259653191, 4893373431575, 212962858290086 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A213800 LINKS EXAMPLE Some solutions for n=4 ..2..2..1..2..2..4..1....1..2..2..4..2..0..3....4..4..0..0..3..0..3 ..2..4..4..4..0..0..0....2..0..2..3..1..2..4....4..4..0..2..3..0..1 ..1..4..3..3..3..0..0....2..2..4..1..4..0..1....0..0..1..1..4..4..4 ..2..4..3..4..0..0..1....4..3..1..1..0..2..3....0..2..1..0..3..4..4 ..2..0..3..0..1..4..4....2..1..4..0..2..4..1....3..3..4..3..0..1..0 ..4..0..0..0..4..2..4....0..2..0..2..4..4..2....0..0..4..4..1..3..2 ..1..0..0..1..4..4..4....3..4..1..3..1..2..0....3..1..4..4..0..2..0 CROSSREFS Sequence in context: A251063 A234988 A075831 * A204491 A085545 A031855 Adjacent sequences:  A213802 A213803 A213804 * A213806 A213807 A213808 KEYWORD nonn AUTHOR R. H. Hardin Jun 20 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 May 23 20:23 EDT 2019. Contains 323528 sequences. (Running on oeis4.)